Bag-type dust collector for waste incineration waste gas treatment

Abstract

The utility model discloses a waste incineration waste gas treatment bag-type dust remover which comprises a dust removal bin, an air inlet chamber arranged on one side of the dust removal bin, an ash hopper arranged at the bottoms of the dust removal bin and the air inlet chamber, and an ash discharge valve and an ash discharge pipe which are connected to the bottom of the ash hopper, wherein the bottom of the side surface of the air inlet chamber is communicated with the dust removal bin; an installation frame of a frame structure is horizontally installed at the position, close to the bottom, in the dust removal bin, a balance weight ring is movably clamped to the installation frame, a fixing ring is installed at the position, close to the upper end, of the surface of the dust removal cloth bag, a plurality of dust removal cables are connected between the fixing ring and the balance weight ring, and the dust removal cables are arranged on the circumferences of the balance weight ring and the fixing ring at equal intervals. And the dust removal cable is spirally and movably wound on the surface of the dust removal cloth bag. According to the bag-type dust collector, the dust collection cable is movably wound outside the dust collection bag, so that the problems of incomplete cleaning, higher energy consumption and insufficient environmental protection caused by blowing air to clean the bag through a compressed air pipe in the existing bag-type dust collector are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a bag dust collector for treating waste gas from garbage incineration. Background Art

[0002] Incineration is a common method of medical waste treatment. After incineration, a large amount of flue gas will be generated. The flue gas contains a large amount of dust particles, which need to be filtered before further treatment of the flue gas without dust particles. Our company uses bag dust collectors to filter the waste gas containing dust particles generated by the incineration of medical waste.

[0003] When the bag dust collector filters the flue gas, the flue gas flows from the outside of the dust bag to the inside, and intercepts larger dust particles when passing through the dust bag. After a period of filtration, a thick layer of dust particles will adhere to the surface of the dust bag, affecting the filtration efficiency. The current solution is that the air compressor blows air into the dust bag through a compressed air pipe to achieve the purpose of recoil cleaning. However, since the surface of the dust bag is not smooth, the dust particles are tightly and firmly attached, and the dust bag is long, blowing from top to bottom has a poor cleaning effect on the bottom, and it is easy to have unclean cleaning. In addition, recoil cleaning is required every once in a while, which is troublesome and consumes a lot of electricity, and is not energy-saving and environmentally friendly. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a bag dust collector for treating waste incineration waste gas, which is used to solve the problems of the existing bag dust collector that uses a compressed air pipe to blow air to clean the dust bags, has poor cleaning, high energy consumption and is not environmentally friendly.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A bag dust collector for treating waste gas from garbage incineration comprises a dust collecting bin, an air inlet chamber arranged at one side of the dust collecting bin and connected to the dust collecting bin at the bottom of the side, an ash hopper arranged at the bottom of the dust collecting bin and the air inlet chamber, and an ash discharge valve and an ash discharge pipe connected to the bottom of the ash hopper, an air compressor is arranged on one side outside the dust collecting bin, the air compressor is connected to a compressed air pipe at a position near the top of the inside of the dust collecting bin, an air inlet and an exhaust port are respectively arranged at positions near the top of the air inlet chamber and the dust collecting bin away from the surface, a partition is horizontally arranged below the compressed air pipe in the dust collecting bin, a through hole for smoke circulation is arranged on the partition, a bag frame is installed at a position corresponding to the through hole below the partition, and a dust collecting bag is sleeved on the surface of the bag frame;

[0007] A mounting frame with a frame structure is horizontally installed near the bottom of the dust removal bin, and a counterweight ring is movably clamped on the mounting frame. A fixing ring is installed on the surface of the dust bag near the upper end, and multiple dust removal cables are connected between the fixing ring and the counterweight ring. The dust removal cables are equidistantly arranged on the circumference of the counterweight ring and the fixing ring, and the dust removal cables are spirally wound around the surface of the dust bag.

[0008] Preferably, the dust removal cable is a flame retardant fiber rope, a fire resistant rubber strip or a stainless steel thin chain.

[0009] Preferably, a fixing screw is fixedly connected to the lower surface of the partition, the bag frame, dust bag and fixing ring are all installed by fixing screws and nuts, and a positioning rod with a movable clamping counterweight ring is vertically fixedly connected to the mounting frame.

[0010] Preferably, the counterweight ring and the fixed ring have the same shape and size, and connecting ears for connecting the dust removal cable are equidistantly arranged on the circumferential outer walls of the counterweight ring and the fixed ring, and mounting holes for inserting fixing screws and positioning rods are equidistantly arranged on the counterweight ring and the fixed ring.

[0011] Preferably, each of the counterweight rings corresponds to two positioning rods, and each of the counterweight rings and the fixing ring has no less than six mounting holes.

[0012] Preferably, a fixing seat is fixedly connected to the inner wall of the dust removal bin, a vertical plug rod is provided on the fixing seat, and a fixing ear movably plugged with the plug rod is fixedly connected to the edge of the mounting frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model realizes that dust collecting cables are movably wound around the outside of the dust collector bag. When the dust collector works normally and the smoke flows from bottom to top and from the outside of the dust collector to the inside, the dust collecting cables will be driven to continuously vibrate and hit the dust collector bag, and continuously rub the surface of the dust collector bag. The dust collecting cables are spirally wound and there will be friction in multiple directions such as up and down and left and right. After the working frequency of the air compressor is reduced and the energy consumption is reduced, the kinetic energy of the smoke flow itself can drive the dust collecting cables to vibrate, so as to clean most of the dust particles on the surface of the dust collector bag, thereby improving the filtration efficiency; combined with the compressed air pipe itself, the cleaning is more thorough, which solves the problems of the existing bag dust collector that uses compressed air pipe to blow to clean the bag, such as insufficient cleaning, high energy consumption and poor environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the utility model;

[0016] Figure 2This is a schematic diagram of the internal structure of the dust removal bin, air intake chamber and ash hopper of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the dust removal bag of the utility model at the corresponding position;

[0018] Figure 4 It is a front cross-sectional view of the corresponding position of the fixing ring of the utility model;

[0019] Figure 5 It is a front cross-sectional view of the corresponding position of the counterweight ring of the utility model;

[0020] Figure 6 This is a top view of the mounting frame of the utility model;

[0021] Figure 7 This is a top view of the mounting frame and the counterweight ring of the utility model.

[0022] In the figure: 1. dust removal bin; 101. exhaust port; 102. partition; 103. through hole; 2. air inlet chamber; 201. air inlet; 3. ash hopper; 4. ash discharge valve; 5. ash discharge pipe; 6. air compressor; 7. compressed air pipe; 8. bag frame; 9. dust removal bag; 10. mounting frame; 1001. positioning rod; 1002. fixing ear; 11. counterweight ring; 12. fixing ring; 13. dust removal cable; 14. fixing screw; 15. connecting ear; 16. mounting hole; 17. fixing seat; 1701. plug rod. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1-7 As shown, the utility model provides a technical solution: a bag dust collector for treating waste incineration waste gas, comprising a dust removal bin 1, an air inlet chamber 2 arranged at one side of the dust removal bin 1 and connected to the dust removal bin 1 at the bottom of the side, an ash hopper 3 arranged at the bottom of the dust removal bin 1 and the air inlet chamber 2, and an ash discharge valve 4 and an ash discharge pipe 5 connected to the bottom of the ash hopper 3, an air compressor 6 is arranged on one side of the outside of the dust removal bin 1, and the air compressor 6 is connected to a compressed air pipe 7 at a position near the top of the inside of the dust removal bin 1;

[0025] An air inlet 201 and an exhaust port 101 are respectively provided at positions near the top of the air inlet chamber 2 and the dust removal bin 1 away from the surface thereof. A partition 102 is horizontally provided below the compressed air pipe 7 in the dust removal bin 1. A through hole 103 for smoke circulation is provided on the partition 102. A bag frame 8 is installed below the partition 102 at a position corresponding to the through hole 103. A dust bag 9 is sleeved on the surface of the bag frame 8.

[0026] The lower surface of the partition 102 is fixedly connected with a fixing screw 14, and the bag frame 8, the dust bag 9 and the fixing ring 12 are all installed by the fixing screw 14 and the nut. The mounting frame 10 is vertically fixedly connected with a positioning rod 1001 that is movable and connected to the counterweight ring 11;

[0027] A mounting frame 10 of a frame structure is horizontally installed near the bottom of the dust removal bin 1, a counterweight ring 11 is movably connected to the mounting frame 10, a fixing ring 12 is installed near the upper end of the surface of the dust bag 9, a fixing seat 17 is fixedly connected to the inner wall of the dust removal bin 1, a vertical plug rod 1701 is arranged on the fixing seat 17, and a fixing ear 1002 movably plugged with the plug rod 1701 is fixedly connected to the edge of the mounting frame 10;

[0028] A plurality of dust removal cables 13 are connected between the fixing ring 12 and the counterweight ring 11. The dust removal cables 13 are flame retardant fiber ropes, fire resistant rubber strips or stainless steel thin chains;

[0029] The dust removal cable 13 is equidistantly arranged on the circumference of the counterweight ring 11 and the fixed ring 12, and the dust removal cable 13 is spirally wound around the surface of the dust removal bag 9. The counterweight ring 11 and the fixed ring 12 have the same shape and size, and connecting ears 15 for connecting the dust removal cable 13 are equidistantly arranged on the circumferential outer walls of the counterweight ring 11 and the fixed ring 12;

[0030] The weight ring 11 and the fixed ring 12 are equidistantly provided with mounting holes 16 for inserting the fixing screw 14 and the positioning rod 1001. There are two positioning rods 1001 corresponding to each weight ring 11, and there are no less than six mounting holes 16 on each weight ring 11 and the fixed ring 12.

[0031] Working principle: When the bag dust collector works normally and the flue gas flows from bottom to top and from the outside to the inside of the dust bag 9, the dust cable 13 will be driven to vibrate and hit the dust bag 9 continuously, and rub the surface of the dust bag 9 continuously. The dust cable 13 is spirally wound, and there will be friction in multiple directions up and down and left and right. After reducing the working frequency of the air compressor 6 and reducing energy consumption, the kinetic energy of the flue gas flow itself can drive the dust cable 13 to vibrate to clean most of the dust particles on the surface of the dust bag 9, thereby improving the filtration efficiency; combined with its own compressed air pipe 7 for blowing, the cleaning is more thorough.

[0032] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes 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 apparatus.

[0033] 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 bag filter for treating waste gas from garbage incineration, comprising a dust collecting bin (1), an air inlet chamber (2) arranged at one side of the dust collecting bin (1) and connected to the dust collecting bin (1) at the bottom of the side, an ash hopper (3) arranged at the bottom of the dust collecting bin (1) and the air inlet chamber (2), and an ash discharge valve (4) and an ash discharge pipe (5) connected to the bottom of the ash hopper (3), an air compressor (6) is arranged at one side of the outside of the dust collecting bin (1), the air compressor (6) is connected to a compressed air pipe (7) at a position near the top of the inside of the dust collecting bin (1), and an air inlet (201) and an exhaust port (101) are respectively arranged at positions near the top of the air inlet chamber (2) and the dust collecting bin (1) facing away from the surface, and characterized in that: A partition (102) is horizontally arranged below the compressed air pipe (7) in the dust removal bin (1), and a through hole (103) for smoke circulation is arranged on the partition (102). A bag frame (8) is installed below the partition (102) at a position corresponding to the through hole (103), and a dust removal bag (9) is sleeved on the surface of the bag frame (8); A mounting frame (10) of a frame structure is horizontally installed near the bottom of the dust removal bin (1), a counterweight ring (11) is movably clamped on the mounting frame (10), a fixing ring (12) is installed near the upper end of the surface of the dust removal bag (9), a plurality of dust removal cables (13) are connected between the fixing ring (12) and the counterweight ring (11), the dust removal cables (13) are equidistantly arranged on the circumference of the counterweight ring (11) and the fixing ring (12), and the dust removal cables (13) are movably wound around the surface of the dust removal bag (9) in a spiral shape.

2. A bag filter for treating waste incineration waste gas according to claim 1, characterized in that: The dust removal cable (13) is a flame retardant fiber rope, a fire resistant rubber strip or a stainless steel thin chain.

3. The bag filter for treating waste incineration waste gas according to claim 1 is characterized in that: The lower surface of the partition (102) is fixedly connected with a fixing screw (14); the bag frame (8), the dust bag (9) and the fixing ring (12) are all installed via the fixing screw (14) and the nut; and a positioning rod (1001) which is movably connected to the counterweight ring (11) is vertically fixedly connected to the mounting frame (10).

4. A bag filter for treating waste incineration waste gas according to claim 3, characterized in that: The shape and size of the counterweight ring (11) and the fixed ring (12) are the same, and connecting ears (15) for connecting the dust removal cable (13) are equidistantly arranged on the circumferential outer walls of the counterweight ring (11) and the fixed ring (12), and mounting holes (16) for plugging in the fixing screw (14) and the positioning rod (1001) are equidistantly arranged on the counterweight ring (11) and the fixed ring (12).

5. A bag filter for treating waste incineration waste gas according to claim 4, characterized in that: There are two positioning rods (1001) corresponding to each of the counterweight rings (11), and there are no less than six mounting holes (16) on each of the counterweight rings (11) and the fixing ring (12).

6. The bag filter for treating waste incineration waste gas according to claim 1, characterized in that: A fixing seat (17) is fixedly connected to the inner wall of the dust removal bin (1), a vertical insertion rod (1701) is provided on the fixing seat (17), and a fixing ear (1002) movably plugged into the insertion rod (1701) is fixedly connected to the edge of the mounting frame (10).

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