CN1815161B - Alumina gas suspension roasting furnace feeding tube sampling device - Google Patents

Abstract

The invention discloses a sampling device for the feeding pipe of an alumina gas suspension roasting furnace, the structure of which is: an outer flap (1) is connected to the right end of a support plate (8), and an inner flap (4) is connected to the support plate (8). The left end of the left end is connected; the support plate (8), the steel pipe (3), and the pipe seat body (5) are respectively connected with the box-shaped pipe (6); wherein, the outer flap (1) is connected to the support plate (8) through the pin shaft (2) ) connection, the inner flap (4) is connected with the support plate (8) through the pin shaft (9); 5) be welded on the left end plate of box-shaped pipe (6); Handle (10) is arranged on outer flap (1), cover plate (7) is arranged at box-shaped pipe (6), and cover plate (7) can be made into Disassembled, threaded on the pipe seat body (5), so as to be threaded with the blanking pipe. The invention has novel structure, reasonable design, convenient operation and reliable use.

Description

Alumina gas suspension roasting furnace feeding tube sampling device

technical field

The invention relates to a sampling device for an Al ₂ O ₃ gas suspension roaster in alumina production.

Background technique:

In alumina production, the purpose of the Al ₂ O ₃ gas suspension roaster is to produce Al ₂ O ₃ , and the Al ₂ O ₃ separated by the cyclone separator enters the next stage through the feeding pipe. In order to know the product quality and its physical and chemical indicators at any time, it is necessary to carry out sampling inspection on the produced Al ₂ O ₃ . Since there is no sampling device at present, we have no choice but to not sample, resulting in ignorance of the quality and its physical and chemical indicators.

Invention content:

The object of the present invention is to provide a novel Al ₂ O ₃ gas suspension roasting furnace feeding pipe sampling device to solve the problems existing in the prior art.

The present invention is constituted like this: it comprises outer flap (1), and outer flap (1) is connected with the right end of support plate (8), and inner flap (4) is connected with the left end of support plate (8); Support plate (8), steel pipe (3), pipe seat body (5) are connected with box pipe (6) respectively.

The outer flap (1) is connected with the support plate (8) through the pin shaft (2), and the inner flap (4) is connected with the support plate (8) through the pin shaft (9); the support plate (8), the steel pipe (3) Be welded on the right end plate of box-shaped pipe (6), and pipe seat body (5) is welded on the left end plate of box-shaped pipe (6); Handle (10) is arranged on the outer flap (1).

Cover plate (7) is arranged on box-shaped pipe (6), and cover plate (7) is made detachable, and purpose is to be convenient to overhaul inside turning plate (4).

Thread is made on the pipe seat body (5) so as to be threadedly connected with the blanking pipe.

The outer flap (1) and the inner flap (4) lean against the steel pipe (3) by their own weight, and play a sealing effect on the steel pipe (3).

During use, the thread of the pipe seat body (5) is connected with the thread of the feeding pipe.

The purpose of the Al ₂ O ₃ gas suspension roasting furnace is to produce Al ₂ O ₃ , and its main feature is that the furnace is under negative pressure. The Al ₂ O ₃ separated by the cyclone separator enters the next stage through the feeding pipe. After the invention is connected with the feeding pipe, sampling is convenient. Through the analysis of sampling samples, we can keep abreast of product quality and physical and chemical indicators, and find and solve problems in time.

The sampling process is as follows: hold the handle (10), uncover the outer flap (1), insert the sampling tube into the steel pipe (3), push the inner flap (4) and put it into the box-shaped tube (6), pass through the tube seat The body (5) enters the feeding pipe and can be sampled. Because it is negative pressure in the furnace, the effect of the outer flap (1) and the inner flap (4) all is to prevent air from entering the blanking tube. When the outer flap (1) is opened, the inner flap (4) still seals the steel pipe (3), and the air cannot enter the feeding pipe, which helps to ensure the purity of the sample, thereby ensuring the quality of the sample.

The invention has novel structure, reasonable design, convenient operation and reliable use.

Description of drawings:

Fig. 1: schematic diagram, front view of the present invention;

Fig. 2: schematic diagram, top view of the present invention;

Figure 3: A view of Figure 1;

Figure 4: Schematic diagram of the connection between the present invention and the feeding pipe.

Detailed ways:

Embodiment of the present invention: make each part, assemble according to the figure. First, install the outer flap 1 on the support plate 8 with the pin shaft 2, and install the inner flap 4 on the support plate 8 through the pin shaft 9; secondly, weld the support plate 8 and the steel pipe 3 to the box-shaped pipe 6 respectively. The right end plate of the right end plate, and the right end plate is welded and fixed; then, the tube seat body 5 is welded on the left end plate of the box-shaped tube 6; finally, the cover plate 7 is fixed on the box-shaped tube 6 with bolts, and the handle 10 is installed On the outer flap 1.

During use, the screw thread of tube seat body 5 and the screw thread of blanking pipe get final product.

Claims (5)

1. blanking-tube sampling device for aluminium oxide gas suspension baking furnace, it comprises outer turnover panel (1), it is characterized in that: outer turnover panel (1) is connected with the right-hand member of back up pad (8), and interior turnover panel (4) is connected with the left end of back up pad (8); Back up pad (8), steel pipe (3) are welded on the right end plate of box-shaped pipe (6), and base body (5) is welded on the first member plate of box-shaped pipe (6); The left end of the left end of back up pad (8) and steel pipe (3) stretches in the box-shaped pipe (6), and the right-hand member of the right-hand member of back up pad (8) and steel pipe (3) is outside box-shaped pipe (6); Outer turnover panel (1) and interior turnover panel (4) lean against the two ends of steel pipe (3) by deadweight, play the sealing function to steel pipe (3).

2. blanking-tube sampling device for aluminium oxide gas suspension baking furnace according to claim 1, it is characterized in that: outer turnover panel (1) is connected with back up pad (8) by first bearing pin (2), and interior turnover panel (4) is connected with back up pad (8) by second bearing pin (9).

3. blanking-tube sampling device for aluminium oxide gas suspension baking furnace according to claim 1 is characterized in that: outer turnover panel (1) is gone up jug (10).

4. blanking-tube sampling device for aluminium oxide gas suspension baking furnace according to claim 1 is characterized in that: cover plate (7) is arranged on box-shaped pipe (6), and cover plate (7) is movable detachable.

5. blanking-tube sampling device for aluminium oxide gas suspension baking furnace according to claim 1 is characterized in that: the base body is manufactured with screw thread on (5).

?

Images