CN207430036U - Deacidifying dedusting device - Google Patents

Abstract

The utility model discloses a kind of deacidifying dedusting device, including：Depickling unit and with the matched dust removing units of the depickling unit；The depickling unit includes reaction chamber and the inlet channel being connected with the reaction chamber, and the inlet channel includes spraying into the main channel of pending gas to the reaction chamber and the subchannel of deacidification agent is sprayed into the reaction chamber；The dust removing units include dust cleaning case, the filter device in the dust cleaning case and the interface channel of the connection dust cleaning case and reaction chamber.Compared to the prior art, the utility model deacidifying dedusting device can effectively improve the utilization rate of deacidification agent, improve acid gas-containing, dust air-flow acid removal rate.

Description

Deacidification and dust removal device

technical field

The utility model relates to a deacidification and dust removal device.

Background technique

Modern industrial equipment (such as incinerators, submerged arc furnaces, etc.) tends to produce flue gas or coal gas containing a certain amount of acid gas during production, and usually also contains CO and CO ₂ . If the flue gas or coal gas containing acid gas is directly discharged into the atmosphere, it will corrode the equipment and cause serious environmental pollution. In order to prevent equipment corrosion and protect the environment, the flue gas or coal gas containing acid gas must be purified. Currently, the most economical acid removal process is the dry acid removal process. However, the disadvantage of the existing dry acid removal process is that the utilization rate of the acid removal agent is extremely low.

In view of the above problems, it is necessary to provide a new deacidification and dust removal device to solve the above problems.

Utility model content

Aiming at the deficiencies of the prior art, the technical problem solved by the utility model is to provide a deacidification and dust removal device, which can increase the utilization rate of the deacidification agent and improve the deacidification rate of the gas to be treated.

In order to achieve the above object, the utility model provides the following technical solutions:

A deacidification and dust removal device, comprising: a deacidification unit and a dust removal unit matched with the deacidification unit; The channel includes a main channel for spraying gas to be treated into the reaction box and a secondary channel for spraying deacidification agent into the reaction box; the dust removal unit includes a dust removal box, a filter device located in the dust removal box, and a connecting The connection channel between the dust removal box and the reaction box is described.

Further, a deacidification reactor is provided at the bottom of the reaction tank, and the deacidification reactor includes a rotating shaft, a crushing mechanism installed on the rotating shaft for crushing the deacidifying agent, and a drive for driving the rotating shaft to rotate. mechanism.

Further, the crushing mechanism is a chain ring.

Further, a dust hopper is arranged in the dust removal box to cooperate with the filter device and collect dust.

Further, the dust removal box is provided with an ash outlet and an ash delivery device for transporting dust from the dust hopper to the ash outlet.

Further, the ash outlet is also provided with an ash unloading valve for closing the ash outlet.

Further, the dust removal box is also provided with a material return port, and the reaction box is provided with a material return conveying device matched with the material return port. The acid dust is transported to the reaction tank.

Further, a deacidification reactor is provided at the bottom of the reaction tank, and the deacidification reactor includes a rotating shaft, a crushing mechanism installed on the rotating shaft for crushing the deacidifying agent, and a drive for driving the rotating shaft to rotate. Mechanism; the return conveying device is located above the deacidification reactor.

Further, the ash discharge conveying device and the material returning conveying device are screw conveyors.

Further, a baffle is arranged inside the reaction box, and the baffle divides the reaction box into several reaction zones, and the reaction zones together form a detour channel for gas flow, so as to prolong the flow of gas in the reaction box. time within.

The beneficial effects of the utility model are: compared with the prior art, the deacidification and dust removal device of the utility model can increase the utilization rate of the deacidification agent and improve the deacidification rate of the gas to be treated.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with accompanying drawings. back.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the deacidification and dust removal device of the present invention.

Figure 2 shows a cross-sectional view of the deacidification and dust removal device.

Figure 3 is a cross-sectional view of the deacidification unit in another direction.

Figure 4 shows a side view of the deacidification and dust removal device.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

Please refer to FIG. 1 , the deacidification and dust removal device 100 of the present invention includes a deacidification unit 10 and a dust removal unit 20 matched with the deacidification unit 10 .

Please refer to Fig. 1, Fig. 2 and shown in Fig. 3, described deacidification unit 10 comprises reaction tank 11, the deacidification reactor 12 that is positioned at the bottom of described reaction tank 11, the return material that is positioned at described deacidification reactor 12 The conveying device 13 and the air inlet channel 14 communicated with the reaction box 11 . A partition 111 is arranged inside the reaction box 11 , and the partition 111 divides the reaction box 11 into several reaction zones 112 . The reaction zone 112 together constitutes a detour channel 113 for the gas flow containing acid gas and dust to prolong the time that the gas flow stays in the deacidification unit 10, so that the gas flow can be separated from the deacidification agent. Long-time, sufficient contact, and a neutralization reaction occurs, thereby increasing the deacidification rate of the gas stream. The deacidification reactor 12 includes a rotating shaft 121 , a crushing mechanism 122 installed on the rotating shaft 121 for crushing the deacidifying agent, and a driving mechanism 123 for driving the rotating shaft 121 to rotate. In this embodiment, the crushing mechanism 122 is a chain ring, and the driving mechanism 123 is a motor. When the deacidification reactor 12 is working, the drive mechanism 123 drives the rotating shaft 121 to rotate, thereby driving the crushing mechanism 122 to rotate at a high speed, and then crushes the deacidification agent located in the reaction tank 11, so that the deacidification agent The particle size of the acid agent is smaller, which facilitates the full contact between the acid gas and the deacidification agent, thereby increasing the usage rate of the deacidification agent and increasing the deacidification rate of the gas flow. The force generated by the high-speed rotation of the crushing mechanism 122 also helps the airflow to flow in the circuitous channel 113 . In addition, the crushing mechanism 122 can also effectively prevent dust from compacting on the bottom wall of the reaction box 11 . The return conveying device 13 is a screw conveyor. The air inlet passage 14 includes a main passage 141 for injecting gas to be treated into the reaction box 11 and a secondary passage 142 for injecting a deacidification agent into the reaction box 11 . Since the main channel 141 and the secondary channel 142 jointly constitute the inlet channel 14, the gas to be treated and the deacidification agent begin to mix before entering the reaction box 11, so that the gas to be treated and the deacidification agent begin to mix. The deacidification agent can be mixed more thoroughly.

Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the dust removal unit 20 includes a dust removal box 21, a filter device (not shown) located in the dust removal box 21, which is matched with the filter device and used A dust hopper 22 for collecting dust, an ash output device 23 and a connecting passage 24 connecting the reaction box 11 and the dust removal box 21 are used. The dust removal box 21 is provided with an ash outlet 211 , an ash unloading valve 212 closing the ash outlet 211 , a material return opening 213 and an air outlet 214 matched with the return material conveying device 13 . The ash delivery device 23 transports the dust in the dust hopper 22 to the ash outlet 211 . In this embodiment, the ash discharge conveying device 23 is a frequency-variable screw conveyor, so that the motor speed can be adjusted according to the deacidification reaction, and then the recycling amount of the dust containing the deacidification agent can be adjusted. The ash unloading valve 212 can rotate automatically under the drive of the motor. The return conveying device 13 transports the dust containing deacidifier outputted by the return port 213 into the reaction box 11, so that the deacidifier that has not undergone neutralization reaction reacts with the acid gas, thereby increasing the The utilization rate of the deacidification agent.

When using the deacidification and dust removal device 100 of the present utility model, at first the air flow containing acid gas and dust, the deacidification agent are sprayed into the reaction box 11 by the main passage 141 and the secondary passage 142 respectively, so that the acid gas and deacidification The agent is neutralized in the reaction box 11. The air flow flows along the detour channel 113 in the reaction box 11 , and enters the dust removal box 21 through the connecting channel 24 . During this process, the deacidification reactor 12 crushes the deacidification agent flowing through the deacidification reactor 12 into smaller powders, so that the deacidification agent and the acid gas have a larger contact surface area, In turn, the deacidification rate of the gas stream is increased. Next, the airflow is discharged from the air outlet 214 after being filtered by the filter device. Dust, neutralization reaction product and deacidification agent without neutralization reaction fall into the dust hopper 22 from the surface of the filter device under the effect of dust removal, and enter the ash discharge conveying device 23 . The mixture composed of the dust, neutralization reaction product and deacidification agent that has not undergone neutralization reaction is partly transported to the ash outlet 211 by the ash delivery device 23; transported to the material return port 213, and transported to the reaction tank 11 through the material return conveying device 13, thereby improving the utilization rate of the deacidification agent.

Compared with the prior art, the deacidification and dust removal device 100 of the utility model can effectively improve the utilization rate of the deacidification agent, and increase the deacidification rate of the airflow containing acid gas and dust.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. A deacidification and dedusting device, characterized in that, comprising: a deacidification unit and a dedusting unit matched with the deacidification unit; the deacidification unit comprises a reaction box and an air inlet connected to the reaction box channel, the air intake channel includes a main channel for spraying gas to be treated into the reaction box and a secondary channel for spraying deacidification agent into the reaction box; the dust removal unit includes a dust removal box and is located in the dust removal box The filter device and the connection channel connecting the dust removal box and the reaction box. 2. The deacidification and dust removal device according to claim 1, characterized in that: the bottom of the reaction tank is provided with a deacidification reactor, and the deacidification reactor includes a rotating shaft, and is installed on the rotating shaft for crushing A crushing mechanism for the deacidification agent and a driving mechanism for driving the rotating shaft to rotate. 3. The deacidification and dust removal device according to claim 2, characterized in that: the crushing mechanism is a chain ring. 4. The deacidification and dedusting device according to claim 1, characterized in that: a dust hopper that cooperates with the filter device and is used to collect dust is arranged in the dust removal box. 5. The deacidification and dust removal device according to claim 4, characterized in that: the dust removal box is provided with an ash outlet and an ash delivery device for transporting dust from the dust hopper to the ash outlet. 6. The deacidification and dust removal device according to claim 5, characterized in that: the ash outlet is also provided with an ash discharge valve closing the ash outlet. 7. The deacidification and dedusting device according to claim 5, characterized in that: the dust removal box is also provided with a material return port, and the reaction box is provided with a return material conveying device matched with the material return port, the The return conveying device transports the deacidifier-containing dust output from the return port to the reaction box. 8. The deacidification and dust removal device according to claim 7, characterized in that: the bottom of the reaction tank is provided with a deacidification reactor, the deacidification reactor includes a rotating shaft, and is installed on the rotating shaft for pulverizing A crushing mechanism for the deacidification agent and a drive mechanism for driving the rotating shaft; the return conveying device is located above the deacidification reactor. 9. The deacidification and dust removal device according to claim 7, characterized in that: the ash discharge conveying device and the material returning conveying device are screw conveyors. 10. The deacidification and dust removal device according to claim 1, characterized in that: a partition is arranged in the reaction box, and the partition divides the reaction box into several reaction zones, and the reaction zones jointly form a A circuitous path for gas flow to prolong the time of gas in the reaction chamber.