Dedusting and filtering device for heating mixer

Abstract

The utility model relates to the technical field of dust removing and filtering devices, and discloses a dust removing and filtering device for a heating mixer. Comprising an exhaust three-way pipe body and a dehumidification filter cylinder. The problems that most of filtering elements in a filtering device of an existing dust remover are common cloth bag structures which are not waterproof and oil-proof, a large number of material dust particles are adhered to the outer surfaces of the cloth bags due to the fact that the cloth bags absorb a large amount of water or oil during gas-material separation, fine dust is adsorbed to the surfaces of the filtering bags, and the air-material separation effect is poor are solved. Along with the increase of time, the dust is naturally accumulated and thicker, the resistance of the dust remover is gradually increased, the amount of treated gas is naturally and continuously reduced, and finally, a filter fails to work, so that the dust overflows and the environmental pollution is overlarge, and the dust remover is very easy to block because the existing exhaust filter cap is not provided with a structure for cleaning a cloth bag by pulse injection. The filter element is frequently replaced, and the cost is high.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal and filtering devices, in particular to a dust removal and filtering device for a heating mixer. Background Art

[0002] The utility model relates to a dust removal filter device for separating materials and gases in raw material heating and mixing systems used in PVC pipes, profiles, sheets; SPC, WPC floor production lines and chemical, plastic modification and granulation fields. In particular, it relates to a material and gas separation dust removal filter device that is used to discharge harmful gases such as low-molecular volatiles and water vapor in the mixed material so that the moisture content of the dry mixed material meets the requirements. The device is equipped with an automatic pulse back-blowing filter bag cleaning system. It is generally installed on the top of the exhaust hole on the upper part of the mixing container of a horizontal heating mixer as a device for separating solids and gases in the horizontal heating mixer system. A filter device that is convenient for replacing bags and repairing will be provided along with the filter.

[0003] In the production process of PVC pipes, profiles, sheets; SPC, WPC floor production lines and chemical, plastic modification and granulation, etc., a large amount of inorganic materials such as calcium carbonate powder, ground material, crushed material, fly ash, and a small amount of resin, processing aid organic material, liquid material, etc. are used. Most of the raw materials contain a certain amount of moisture. When producing products, the materials must be prepared according to the formula requirements and then put into the mixing container of the heating mixer for heating and mixing. During the mixing process, the humid air and low molecular volatiles in the mixed materials are required to be discharged to the outside of the filter or separated into a receiving container through natural exhaust or strong suction by a water ring vacuum pump.

[0004] However, the filter elements in the dust collector filtering devices currently used are mostly ordinary bag structures that are not waterproof or oil-proof. When separating gas and material, the bag itself absorbs a large amount of water or oil, so the outer surface of the bag will be stuck with a large amount of material dust particles, and the finer dust is adsorbed on the surface of the filter bag. With the passage of time, the dust naturally accumulates thicker and the resistance of the dust collector gradually increases. The amount of gas processed will naturally continue to decrease, and finally the filter will fail, causing dust overflow and excessive environmental pollution. Since the exhaust filter cap currently installed does not have a pulse jet cleaning bag structure, the dust collector is easily blocked, the filter element is frequently replaced, and the cost is high. Utility Model Content

[0005] The purpose of the utility model is to provide a dust removal and filtering device for a heating mixer to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust removal and filtering device for a heating mixer, comprising an exhaust three-way pipe body and a dehumidification filter cylinder, and also comprising: a fixing nut arranged on the exhaust three-way pipe body, a fixing bolt is arranged on the top of the fixing nut, a pneumatic butterfly valve is arranged on the end of the fixing bolt, an exhaust bag clamp is arranged on the end of the pneumatic butterfly valve, a first three-proof exhaust bag is arranged on the end of the exhaust bag clamp, an exhaust rack is arranged in the inner cavity of the first three-proof exhaust bag, the first three-proof exhaust bag is sleeved on the outer surface of the exhaust rack and fixed to the exhaust rack by the exhaust bag clamp, and a buckle is arranged on the surface of the dehumidification filter cylinder; a dehumidifier upper cover assembly is arranged on the top of the dehumidifier filter cylinder, a first connecting flange is welded on the surface of the dehumidifier upper cover assembly, a forced suction pipe is connected to the top of the dehumidifier upper cover assembly, a pulse spray connecting pipe is arranged on the right side of the top of the inner cavity of the exhaust three-way pipe body, and a pulse valve is arranged on one side of the pulse spray connecting pipe.

[0007] Preferably, a first sealing ring is arranged on the top of the first connecting flange, and a second connecting flange is arranged on the bottom of the first sealing ring.

[0008] Preferably, the bottom of the pulse valve is connected to a double-ended wire tube short joint, the bottom of the double-ended wire tube short joint is connected to a flexible joint, the bottom of the flexible joint is provided with a second sealing ring, the bottom of the second sealing ring is provided with an air bag joint, and the bottom of the air bag joint is provided with an air bag air inlet pipe.

[0009] Preferably, an air bag assembly is provided at the bottom of the air bag air inlet pipe, and the air bag assembly includes an air bag drain pipe and an air bag drain valve. The top of the air bag drain pipe is connected to the air bag assembly, and the top of the air bag drain valve is connected to the air bag drain pipe.

[0010] Preferably, a dehumidification filter cylinder is arranged on the top of the exhaust three-way tube body, a first lower flange is welded to the bottom of the surface of the dehumidification filter cylinder, a third sealing ring is arranged at the bottom of the first lower flange, a connecting bolt is arranged in the inner cavity of the first lower flange, a connecting nut is arranged at the bottom of the surface of the connecting bolt, a second upper flange is arranged on the top of the connecting nut, and the inner cavity of the second upper flange is welded to the exhaust three-way tube body.

[0011] Preferably, a positioning flange is provided at the bottom of the exhaust three-way pipe body surface, an exhaust filter cage is provided at the bottom of the inner cavity of the dehumidification filter cylinder, and a second three-proof exhaust bag is provided on the top of the exhaust filter cage.

[0012] Preferably, a first mounting flange is provided at the bottom of the pneumatic butterfly valve, and a second mounting flange is provided at the top of the pneumatic butterfly valve.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] Compared with the traditional dust removal and filtering device, the utility model adopts a water ring vacuum pump to suck out a vacuum degree of up to 0.95Mpa. The filter adopts a pulse back-blowing cleaning bag structure, and the bag has three-proof oil-proof, waterproof, and anti-static adsorption materials. The natural exhaust and the forced exhaust are separated by a valve. When the natural exhaust is performed, the valve is opened and the water ring vacuum pump stops working; when the forced exhaust is performed, the valve is closed and the water ring vacuum pump starts working to generate a certain negative pressure in the mixing container of the heating mixer, thereby strongly absorbing the moisture and low-molecular volatiles in the material. The device has the characteristics of small size, strong exhaust, thorough moisture removal, long life, light weight, and convenient replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a dust removal and filtering device for a heating mixer provided by the utility model;

[0016] Figure 2 A schematic diagram of the top view structure provided by the utility model;

[0017] Figure 3 A schematic diagram of the expanded cross-sectional structure provided by the utility model;

[0018] Figure 4 The utility model provides Figure 3 Schematic diagram of the structure at point A in the middle.

[0019] In the figure: 1. Exhaust three-way pipe body; 2. Fixing nut; 3. Fixing bolt; 4. Pneumatic butterfly valve; 5. Exhaust bag clamp; 6. First three-defense exhaust bag; 7. Exhaust rack; 8. Press buckle; 9. First connecting flange; 10. Forced suction pipe; 11. Dehumidifier upper cover assembly; 12. Pulse spray connecting pipe; 13. Pulse valve; 14. First sealing ring; 15. Second connecting flange; 16. Double-headed wire pipe short joint; 17. Flexible joint; 18. The second sealing ring; 19. air bag joint; 20. air bag air inlet pipe; 21. air bag assembly; 22. air bag drain pipe; 23. drain valve; 24. dehumidification filter cylinder; 25. first lower flange; 26. third sealing ring; 27. connecting bolts; 28. connecting nuts; 29. ​​second upper flange; 30. positioning flange; 31. second three-proof exhaust bag; 32. exhaust filter cage; 33. first mounting flange; 34. second mounting flange. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 As shown, a dust removal and filtering device for a heating mixer includes an exhaust three-way pipe body 1 and a dehumidification filter cylinder 24, and also includes: a fixing nut 2 arranged on the exhaust three-way pipe body 1, a fixing bolt 3 is arranged on the top of the fixing nut 2, a pneumatic butterfly valve 4 is arranged at the end of the fixing bolt 3, an exhaust bag clamp 5 is arranged at the end of the pneumatic butterfly valve 4, a first three-proof exhaust bag 6 is arranged at the end of the exhaust bag clamp 5, an exhaust frame 7 is arranged in the inner cavity of the first three-proof exhaust bag 6, and the first three-proof exhaust bag 6 is sleeved on the outer surface of the exhaust frame 7 and fixed to the exhaust frame 7 through the exhaust bag clamp 5, and the surface of the dehumidifier filter cylinder 24 is provided with a buckle 8; a dehumidifier upper cover assembly 11 is arranged on the top of the dehumidifier filter cylinder 24, and a first connecting flange 9 is welded on the surface of the dehumidifier upper cover assembly 11, and the top of the dehumidifier upper cover assembly 11 is connected to a forced suction pipe 10, and a pulse spray connecting pipe 12 is arranged on the right side of the top of the inner cavity of the exhaust three-way pipe body 1, and a pulse valve 13 is arranged on one side of the pulse spray connecting pipe 12.

[0022] refer to Figure 1 , Figure 2 and Figure 3 As shown, a first sealing ring 14 is arranged on the top of the first connecting flange 9, a second connecting flange 15 is arranged on the bottom of the first sealing ring 14, a double-headed wire tube short joint 16 is connected to the bottom of the pulse valve 13, a flexible joint 17 is connected to the bottom of the double-headed wire tube short joint 16, a second sealing ring 18 is arranged on the bottom of the flexible joint 17, an air bag joint 19 is arranged on the bottom of the second sealing ring 18, and an air bag air inlet pipe 20 is arranged on the bottom of the air bag joint 19.

[0023] It should be noted that: it is fixedly installed on the first connecting flange 9 through the first sealing ring 14. When replacing the filter bag, you only need to open the four buckles 8 and loosen the soft connection to remove the dehumidifier cover assembly 11, so that the filter element can be easily repaired and replaced. The double-headed wire tube short joint 16, the flexible joint 17, and the air bag joint 19 facilitate the mutual connection.

[0024] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an air bag assembly 21 is arranged at the bottom of the air bag inlet pipe 20, and the air bag assembly 21 includes an air bag drain pipe 22 and an air bag drain valve 23. The top of the air bag drain pipe 22 is connected to the air bag assembly 21, and the top of the air bag drain valve 23 is connected to the air bag drain pipe 22. A dehumidification filter cylinder 24 is arranged at the top of the exhaust three-way pipe body 1, and a first lower flange 25 is welded to the bottom of the surface of the dehumidification filter cylinder 24. A third sealing ring 26 is arranged at the bottom of the first lower flange 25, and a connecting bolt 27 is arranged in the inner cavity of the first lower flange 25. A connecting nut 28 is provided at the bottom of the surface of the connecting bolt 27, a second upper flange 29 is provided on the top of the connecting nut 28, the inner cavity of the second upper flange 29 is welded to the exhaust three-way pipe body 1, a positioning flange 30 is provided at the bottom of the surface of the exhaust three-way pipe body 1, an exhaust filter cage 32 is provided at the bottom of the inner cavity of the dehumidification filter cylinder 24, a second three-proof exhaust bag 31 is provided on the top of the exhaust filter cage 32, a first mounting flange 33 is provided at the bottom of the pneumatic butterfly valve 4, and a second mounting flange 34 is provided on the top of the pneumatic butterfly valve 4.

[0025] It should be noted that the dehumidification filter cylinder 24 is a double-flange conical barrel structure with a small upper part and a large lower part, a second connecting flange 15 with a circular flange and a porous plate integrated structure is welded on the upper part, and a first lower flange 25 is provided at the bottom, which are respectively used to install the dehumidifier upper cover assembly 11 and fix the dehumidification filter on the exhaust three-way pipe body 1, and the first mounting flange 33 and the second mounting flange 34 are used to install the pneumatic butterfly valve 4, the exhaust rack 7, the first three-proof exhaust bag 6, and the exhaust bag clamp 5. The pneumatic butterfly valve 4 fixing nut 2 and the pneumatic butterfly valve 4 fixing bolt 3 fix the exhaust rack 7 and the pneumatic butterfly valve 4 to the exhaust three-way pipe body 1.

[0026] Working principle: By loosening the four buckles 8 and removing the forced air suction pipe 10, the dehumidifier cover assembly 11 can be removed, and the filter element can be easily repaired and replaced, thereby improving the working environment of workers working at high altitudes, being safe and convenient, and saving a lot of time. The filter adopts a pulse back-blowing cleaning bag structure, and the bag is three-proof and oil-proof, waterproof, and anti-static adsorption material. The natural exhaust and the forced exhaust are separated by a valve. When the natural exhaust is performed, the valve is opened and the water ring vacuum pump stops working; when the forced exhaust is performed, the valve is closed and the water ring vacuum pump starts working to generate a certain negative pressure in the mixing container of the heating mixer, thereby strongly absorbing the moisture and low-molecular volatiles in the material. The device has the characteristics of small size, strong exhaust, thorough moisture removal, long life, light weight, and easy replacement and maintenance.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal and filtering device for a heating mixer, comprising an exhaust tee pipe body (1) and a dehumidification filter cylinder body (24), characterized in that: Also includes: A fixing nut (2) is arranged on the exhaust three-way pipe body (1), a fixing bolt (3) is arranged on the top of the fixing nut (2), a pneumatic butterfly valve (4) is arranged at the end of the fixing bolt (3), an exhaust bag clamp (5) is arranged at the end of the pneumatic butterfly valve (4), a first three-proof exhaust bag (6) is arranged at the end of the exhaust bag clamp (5), an exhaust rack (7) is arranged in the inner cavity of the first three-proof exhaust bag (6), the first three-proof exhaust bag (6) is sleeved on the outer surface of the exhaust rack (7) and is fixed to the exhaust rack (7) through the exhaust bag clamp (5), and a press buckle (8) is arranged on the surface of the dehumidification filter cylinder (24); A dehumidifier upper cover assembly (11) is arranged on the top of the dehumidifier filter cylinder (24), a first connecting flange (9) is welded on the surface of the dehumidifier upper cover assembly (11), a forced air suction pipe (10) is connected to the top of the dehumidifier upper cover assembly (11), a pulse spray connecting pipe (12) is arranged on the right side of the top of the inner cavity of the exhaust three-way pipe body (1), and a pulse valve (13) is arranged on one side of the pulse spray connecting pipe (12).

2. A dust removal and filtering device for a heating mixer according to claim 1, characterized in that: A first sealing ring (14) is arranged at the top of the first connecting flange (9), and a second connecting flange (15) is arranged at the bottom of the first sealing ring (14).

3. A dust removal and filtering device for a heating mixer according to claim 1, characterized in that: The bottom of the pulse valve (13) is connected to a double-ended wire tube short joint (16), the bottom of the double-ended wire tube short joint (16) is connected to a flexible joint (17), the bottom of the flexible joint (17) is provided with a second sealing ring (18), the bottom of the second sealing ring (18) is provided with an air bag joint (19), and the bottom of the air bag joint (19) is provided with an air bag air inlet pipe (20).

4. A dust removal and filtering device for a heating mixer according to claim 3, characterized in that: An air bag assembly (21) is arranged at the bottom of the air bag air inlet pipe (20), and the air bag assembly (21) comprises an air bag drainage pipe (22) and an air bag drainage valve (23), the top of the air bag drainage pipe (22) is communicated with the air bag assembly (21), and the top of the air bag drainage valve (23) is connected to the air bag drainage pipe (22).

5. A dust removal and filtering device for a heating mixer according to claim 1, characterized in that: A dehumidification filter cylinder (24) is arranged at the top of the exhaust three-way pipe body (1), a first lower flange (25) is welded to the bottom of the surface of the dehumidification filter cylinder (24), a third sealing ring (26) is arranged at the bottom of the first lower flange (25), a connecting bolt (27) is arranged in the inner cavity of the first lower flange (25), a connecting nut (28) is arranged at the bottom of the surface of the connecting bolt (27), a second upper flange (29) is arranged on the top of the connecting nut (28), and the inner cavity of the second upper flange (29) is welded to the exhaust three-way pipe body (1).

6. A dust removal and filtering device for a heating mixer according to claim 1, characterized in that: A positioning flange (30) is provided at the bottom of the surface of the exhaust three-way pipe body (1), an exhaust filter cage (32) is provided at the bottom of the inner cavity of the dehumidification filter cylinder (24), and a second three-proof exhaust bag (31) is provided at the top of the exhaust filter cage (32).

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