CN204582822U - High temperature and high pressure gas dedusting device - Google Patents

Abstract

The utility model discloses a high-temperature and high-pressure gas dedusting device, which comprises a tank body (2), multiple sets of ceramic membrane tubes (3) and a pulse device, and multiple sets of ceramic membrane tubes (3) are vertically arranged on the tank body (2) at intervals In the filter area (11), the pulse device includes a pulse tube (6), a plurality of pulse valves (7) and a plurality of corresponding nozzles (5) placed directly above the ceramic membrane tube (3), and the ceramic membrane tube (3) The upper end is provided with a buffer gasket (4), and the bottom surface of the buffer gasket (4) extends downwards a plurality of bosses (4.1) arranged at intervals and used to cooperate with the inner cavity of the ceramic membrane tube (3), and the bosses ( The two sides of 4.1) are symmetrically provided with two shrapnels (4.2) that bend inward and are against the outer wall of the ceramic membrane tube (3), and the distance between the lower end of the shrapnel (4.2) and the bottom surface of the shock absorbing pad is greater than that of the boss (4.1 )the height of. The high-temperature and high-pressure gas dedusting device has a better buffering effect and can effectively avoid the stress damage phenomenon of the ceramic membrane tube.

Description

High temperature and high pressure gas dust removal device

technical field

The utility model relates to a flue gas dedusting device, in particular to a high temperature and high pressure gas dedusting device.

Background technique

At present, the most commonly used dust removal devices mainly include bag dust removal, electric dust removal and water film dust removal. The application range of bag dust removal is limited by the temperature resistance and corrosion resistance of the filter material, generally limited to below 250 °C, and is not suitable for dust with strong adhesion and strong hygroscopicity. The electrostatic precipitator is limited by the specific resistance of solid particles and the composition of the flue gas, and has high requirements for manufacturing, installation and operation, and the one-time investment and maintenance costs are too high. Water film dedusting is not conducive to the effective use of energy, the loss of heat energy is serious, and the treatment of water film waste liquid is also a big problem. For this reason, the company has previously developed a method of online cleaning using pulsed gas. Each pulse valve controls 3 to 5 filter tubes, and timing recoil or differential pressure feedback recoil can be adopted according to the actual situation. However, in practical applications, the pulse backflushing method is still difficult to avoid the stress damage of the ceramic membrane tube.

Contents of the invention

The technical problem to be solved by the utility model is to provide a high-temperature and high-pressure gas dedusting device with better buffering effect and effective avoidance of ceramic membrane tube stress damage.

The technical solution adopted by the utility model to solve the above problems is: a high-temperature and high-pressure gas dedusting device, including a tank body, multiple groups of ceramic membrane tubes and pulse devices, and the tank body is sequentially divided into a cleaning area, a filter area, and a filter area from top to bottom. area and ash area, the multiple sets of ceramic membrane tubes are vertically spaced in the tank filter area, and the pulse device includes a pulse tube, a plurality of pulse valves and a plurality of corresponding ceramic membrane tubes The nozzle directly above, the upper end of the ceramic membrane tube is provided with a buffer seal, and the bottom surface of the buffer seal extends downwards to a plurality of intervals for matching with the inner cavity of the ceramic membrane tube Protruding pillars, the two sides of the protruding pillars are symmetrically provided with two shrapnels bent inward and against the outer wall of the ceramic membrane tube, and the distance from the lower end of the shrapnel to the bottom surface of the shock-absorbing pad is greater than the height of the bossing pillars .

Compared with the prior art, the utility model has the advantages that: the upper end of the high-temperature and high-pressure gas dedusting device is provided with a buffer gasket, and the bottom surface of the buffer gasket extends downward at multiple intervals and is used to communicate with the inner cavity of the ceramic membrane tube. As for the matching boss, two shrapnels bent inward and against the outer wall of the ceramic membrane tube are arranged symmetrically on both sides of the boss, and the distance from the lower end of the shrapnel to the bottom surface of the shock-absorbing pad is greater than the height of the boss. In this way, the convex column can be fixedly fitted with the inner cavity of the ceramic membrane tube, and then the outer wall of the ceramic membrane tube is further fixed by two inwardly bent shrapnel, which not only has a good fixing effect, but also has a better cushioning effect, and can effectively avoid stress damage to the ceramic membrane tube Phenomenon.

Preferably, the bottom surface of the boss is an arc surface.

As a preference, the lower end of the ceramic membrane tube is provided with a high temperature resistant asbestos pad.

As a preference, the lower part of one side of the tank body is provided with an air inlet pipe, and the clean area on the other side of the tank body is provided with an air outlet pipe; and the lower end of the ash area of the tank body is provided with Ash pipe.

Preferably, the top of the tank body is provided with a first manhole, and the filter area of the tank body is provided with a second manhole.

Description of drawings

Fig. 1 is a structural schematic diagram of a high-temperature and high-pressure gas dedusting device of the present invention.

Fig. 2 is a structural schematic diagram of the buffer gasket of the high-temperature and high-pressure gas dedusting device of the present invention.

In Figure 1-2: 1 intake pipe, 2 tank body, 3 ceramic membrane tube, 4 buffer gasket, 4.1 convex post, 4.2 shrapnel, 5 nozzle, 6 pulse tube, 7 pulse valve, 8 cleaning area, 9 first person hole, 10 air outlet pipe, 11 filter area, 12 second manhole, 13 high temperature resistant asbestos pad, 14 ash slag area, 15 ash discharge pipe.

Detailed ways

Embodiments of the utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, a high-temperature and high-pressure gas dedusting device includes a tank body 2, multiple sets of ceramic membrane tubes 3 and a pulse device. The tank body 2 is sequentially divided into a cleaning area 8 and a filtering area from top to bottom. 11 and ash area 14, the multiple sets of ceramic membrane tubes 3 are vertically spaced in the filter area 11 of the tank body 2, and the pulse device includes a pulse tube 6, a plurality of pulse valves 7 and a plurality of Corresponding to the nozzle 5 placed directly above the ceramic membrane tube 3, the upper end of the ceramic membrane tube 3 is provided with a buffer gasket 4, and the bottom surface of the buffer gasket 4 extends downwards to form a plurality of intervals and is used to communicate with The inner cavity of the ceramic membrane tube 3 is matched with the boss 4.1, and the two sides of the boss 4.1 are symmetrically provided with two shrapnels 4.2 bent inward and against the outer wall of the ceramic membrane tube 3, and the The distance from the lower end of the shrapnel 4.2 to the bottom surface of the shock absorber is greater than the height of the boss 4.1.

The bottom surface of the boss 4.1 is an arc surface.

The lower end of the ceramic membrane tube 3 is provided with a high temperature resistant asbestos pad 13 .

The lower part of one side of the tank body 2 is provided with an air inlet pipe 1, and the clean area 8 on the other side of the tank body 2 is provided with an air outlet pipe 10; and the ash area 14 of the tank body 2 is The lower end is provided with ash discharge pipe 15.

The top of the tank body 2 is provided with a first manhole 9 , and the filter area 11 of the tank body 2 is provided with a second manhole 12 .

The above only illustrates the best embodiments of the present utility model, but should not be construed as a limitation on the claims. The utility model is not limited to the above embodiments, and its specific structure allows changes. All changes made within the scope of protection of the independent claims of the utility model are within the scope of protection of the utility model.

Claims (5)

1. A high-temperature and high-pressure gas dedusting device, comprising a tank body (2), multiple groups of ceramic membrane tubes (3) and a pulse device, the tank body (2) is sequentially divided into a cleaning area (8), Filtration area (11) and ash area (14), described multiple sets of ceramic membrane tubes (3) are vertically spaced in the filter area (11) of the tank body (2), and the pulse device includes A pulse tube (6), a plurality of pulse valves (7) and a plurality of nozzles (5) correspondingly placed directly above the ceramic membrane tube (3), are characterized in that: the upper end of the ceramic membrane tube (3) is provided with A buffer gasket (4), the bottom surface of the buffer gasket (4) extends downwards with a plurality of protrusions (4.1) arranged at intervals and used to cooperate with the inner cavity of the ceramic membrane tube (3) The two sides of the boss (4.1) are symmetrically provided with two shrapnels (4.2) bent inward and against the outer wall of the ceramic membrane tube (3), and the lower ends of the shrapnels (4.2) reach the shock absorbing The distance of the bottom surface of the pad is greater than the height of the boss (4.1). 2. The high-temperature and high-pressure gas dedusting device according to claim 1, characterized in that: the bottom surface of the convex column (4.1) is an arc surface. 3. The high temperature and high pressure gas dedusting device according to claim 1, characterized in that: the lower end of the ceramic membrane tube (3) is provided with a high temperature resistant asbestos pad (13). 4. The high-temperature and high-pressure gas dedusting device according to claim 1, characterized in that: the lower part of one side of the tank body (2) is provided with an air inlet pipe (1), and the other side of the tank body (2) is An air outlet pipe (10) is provided at the cleaning area (8) on one side; and an ash discharge pipe (15) is provided at the lower end of the ash area (14) of the tank body (2). 5. The high-temperature and high-pressure gas dedusting device according to claim 1, characterized in that: the top of the tank body (2) is provided with a first manhole (9), and the filter area of the tank body (2) (11) place is provided with the second manhole (12).