Aluminum ash treatment dust waste gas purification device

Abstract

The utility model discloses an aluminum ash treatment dust waste gas purification device which comprises a bag-type dust collector, a cooling structure and a bent pipe section, the cooling structure and the bent pipe section are sequentially arranged at the air inlet end of the bag-type dust collector in a communicated mode, the cooling structure comprises a barrel and a barrel sleeve fixedly arranged outside the barrel, and a containing cavity is formed between the barrel sleeve and the outer side wall of the barrel. A cooling medium is injected into the containing cavity, and gas passing through the interior of the barrel is cooled and then input into the bag-type dust collector. Through the arrangement of the bent pipe section and the cooling structure, a waste gas conveying path is added to the bent pipe section, so that waste gas can be partially and naturally cooled when passing through the bent pipe section, and a cooling medium of the cooling structure surrounds the outer part of the cylinder body; and the primary cooling effect on the treated waste gas is achieved by cooling the gas passing through the interior of the cylinder body, so that the damage to a cloth bag of the bag-type dust collector caused by high temperature of the waste gas entering the bag-type dust collector is avoided, and the service life of the bag-type dust collector is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas purification, and particularly relates to a purification device for dust waste gas generated from aluminum ash treatment. Background Art

[0002] The purification device for dust waste gas generated from aluminum ash treatment is used for purifying and treating the dust waste gas generated from aluminum ash treatment, and effectively solves the problems of removing particulate dust and harmful gases in the waste gas.

[0003] The Chinese patent application document with the publication number of CN220677114U in the prior art discloses a purification system for dust waste gas generated from aluminum ash treatment, which includes legs and a bottom plate. The tops of a plurality of the legs are all connected with a purification structure. The inner bottom of the legs is fixedly connected with the outer side of the bottom plate. The bottom of the purification structure is connected with a vertical rod. The lower part of the outer side of the legs is connected with a control structure. Through the straight pipe on the left side of the pulse bag filter in the purification structure being communicated with the external flue, after the waste gas enters the pulse bag filter, dust removal treatment is carried out. Subsequently, the waste gas is drawn into the interior of the carbon purification device by an induced draft fan for odor treatment, and finally enters the desulfurization tower for desulfurization treatment, and then is discharged from the top of the desulfurization tower.

[0004] The above prior art has the following disadvantages: when treating waste gas with a relatively high temperature, the direct contact between the high-temperature waste gas and the cloth bag will easily cause damage to the cloth bag in the bag filter, thereby shortening the service life of the bag filter. Content of the Utility Model

[0005] In view of the problems in the prior art, the utility model proposes the following technical solutions:

[0006] The utility model provides a purification device for dust waste gas generated from aluminum ash treatment, including:

[0007] A bag filter,

[0008] A cooling structure and an elbow section which are sequentially connected and arranged at the air inlet end of the bag filter. The cooling structure includes a cylinder body and a cylinder sleeve fixedly arranged outside the cylinder body. An accommodation cavity is formed between the cylinder sleeve and the outer side wall of the cylinder body. A cooling medium is injected into the accommodation cavity. The gas passing through the interior of the cylinder body is cooled and then input into the bag filter.

[0009] Preferably, the cylinder sleeve is further provided with a liquid inlet and a liquid outlet which are communicated with the accommodation cavity. The liquid inlet and the liquid outlet are respectively arranged at the top end and the bottom end of the cylinder sleeve.

[0010] Preferably, detachable plugs are arranged in both the liquid inlet and the liquid outlet.

[0011] Preferably, an induced draft fan and a purification structure are sequentially connected to the air outlet end of the bag filter.

[0012] Preferably, brackets are provided at the bottom ends of the cooling structure and the purification structure.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By providing the elbow section and the cooling structure, the elbow section increases the conveying path of the waste gas, so that the waste gas can be partially naturally cooled when passing through the elbow section. The cooling medium of the cooling structure surrounds the outside of the cylinder body, and cools the gas passing through the inside of the cylinder body, both of which play a primary cooling role on the treated waste gas, thus avoiding damage to the bags of the bag filter caused by the high temperature of the waste gas entering the bag filter and improving the service life of the bag filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Fig. shows the front view schematic diagram of the purification device in the embodiment;

[0016] Figure 2 Fig. shows the top view schematic diagram of the purification device in the embodiment;

[0017] Figure 3 Fig. shows the cross-sectional view schematic diagram of the cooling structure in the embodiment;

[0018] Reference numerals: 10, bag filter; 11, induced draft fan; 12, purification structure; 13, bracket; 20, elbow section; 30, cooling structure; 31, cylinder body; 32, cylinder sleeve; 33, accommodation cavity; 34, liquid inlet; 35, liquid outlet; 36, plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0020] Embodiment

[0021] As Figure 1 , Figure 2 , Figure 3 shown, Figure 1 Fig. shows the front view schematic diagram of the purification device in the embodiment; Figure 2 Fig. shows the top view schematic diagram of the purification device in the embodiment; Figure 3 Fig. shows the cross-sectional view schematic diagram of the cooling structure in the embodiment;

[0022] This device includes:

[0023] Bag filter 10,

[0024] The cooling structure 30 and the elbow section 20 are sequentially connected and arranged at the air inlet end of the bag filter 10. The cooling structure 30 includes a cylinder body 31 and a cylinder sleeve 32 fixedly arranged outside the cylinder body 31. An accommodation cavity 33 is formed between the cylinder sleeve 32 and the outer side wall of the cylinder body 31. A cooling medium is injected into the accommodation cavity 33, and the gas passing through the inside of the cylinder body 31 is cooled and then input into the bag filter 10.

[0025] The waste gas enters from the input end of the elbow section 20, then passes through the cylinder body 31 of the cooling structure 30 and is then discharged into the bag filter 10. Both the elbow section 20 and the cooling structure 30 play a role in initially cooling the treated waste gas, thereby avoiding damage to the bags of the bag filter 10 caused by the high temperature of the waste gas entering the bag filter 10 and improving the service life of the bag filter 10.

[0026] The arrangement of the elbow section 20 increases the conveying path of the waste gas, so that the waste gas can be partially naturally cooled when passing through the elbow section 20. The injected cooling medium in the accommodation cavity 33 has a cooling effect, such as coolant or cooling water. The cooling medium surrounds the outside of the cylinder body 31 and cools and reduces the temperature of the gas passing through the inside of the cylinder body 31.

[0027] Such as Figure 1 、 Figure 2 、 Figure 3 shown in Figure 1 Figure 18 shows the front view schematic diagram of the purification device in the embodiment; Figure 2 Figure 20 shows the top view schematic diagram of the purification device in the embodiment; Figure 3 Figure 22 shows the cross-sectional view schematic diagram of the cooling structure in the embodiment;

[0028] The cylinder sleeve 32 is also provided with a liquid inlet 34 and a liquid outlet 35 that communicate with the accommodation cavity 33. The liquid inlet 34 and the liquid outlet 35 are respectively arranged at the top end and the bottom end of the cylinder sleeve 32; detachable plugs 36 are arranged in both the liquid inlet 34 and the liquid outlet 35.

[0029] The liquid inlet 34 and the liquid outlet 35 are used for the injection and discharge of the cooling medium; the opening and closing states of the liquid inlet 34 and the liquid outlet 35 are switched by the arranged plugs 36.

[0030] The air outlet end of the bag filter 10 is also sequentially connected with a draft fan 11 and a purification structure 12.

[0031] Both the draft fan 11 and the purification structure 12 are prior arts. The draft fan 11 plays a role in sucking in the waste gas. Specifically, to ensure the smooth suction of the gas, multiple draft fans 11 can be arranged at different positions according to the actual situation; the purification structure 12 is a carbon purification device, which plays a role in further purifying the waste gas. The model can be selected according to the actual situation and will not be elaborated here.

[0032] Supports 13 are provided at the bottom ends of both the cooling structure 30 and the purification structure 12.

[0033] The provided supports 13 play a role in supporting and installing the cooling structure 30 and the purification structure 12, and can ensure the stability of each mechanism during operation.

[0034] Working principle: When this device is in use, the waste gas enters from the input end of the elbow section 20, and then is discharged into the bag filter 10 after passing through the cylinder body 31 of the cooling structure 30. Pre-cooling is carried out before entering the bag filter 10: When the waste gas passes through the elbow section 20, the conveying path of the waste gas is increased, so that the waste gas can be partially naturally cooled when passing through the elbow section 20. Then, when the waste gas passes through the cylinder body 31, the cooling medium injected into the outer accommodation cavity 33 around the cylinder body 31 cools down the gas passing through the inside of the cylinder body 31.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. Aluminum ash treatment dust exhaust gas purification device, characterized in that: include: Bag filter (10), A cooling structure (30) and a curved pipe section (20) arranged at an air inlet end of a bag filter (10) are sequentially connected, the cooling structure (30) comprising a cylinder (31) and a cylinder sleeve (32) fixedly arranged outside the cylinder (31), a receiving cavity (33) being formed between the cylinder sleeve (32) and an outer wall of the cylinder (31), a cooling medium being injected into the receiving cavity (33), and the gas passing through the cylinder (31) is input into the bag filter (10) after being cooled.

2. The aluminum ash treatment dust waste gas purification device according to claim 1 is characterized in that: The sleeve (32) is also provided with a liquid inlet (34) and a liquid outlet (35) which are in communication with the accommodating chamber (33); the liquid inlet (34) and the liquid outlet (35) are respectively arranged at the top end and the bottom end of the sleeve (32).

3. The aluminum ash treatment dust waste gas purification device according to claim 2 is characterized in that: The liquid inlet (34) and the liquid outlet (35) are both provided with detachable plugs (36).

4. The aluminum ash treatment dust waste gas purification device according to claim 1 is characterized in that: The air outlet end of the bag filter (10) is also connected in sequence to an induced draft fan (11) and a purification structure (12).

5. The aluminum ash treatment dust waste gas purification device according to claim 4 is characterized in that: The bottom ends of the cooling structure (30) and the purification structure (12) are both provided with brackets (13).

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