Waste gas treatment device after sludge drying

Abstract

The utility model belongs to the technical field of sludge integrated treatment, and particularly relates to a sludge drying waste gas treatment device which comprises a sludge drying box, an inner box body is fixedly arranged in the sludge drying box, and electric heating rings which are uniformly distributed are fixedly arranged between the sludge drying box and the inner box body. Through cooperation of a gas drying box, a mounting frame, drying cotton and a moving mechanism, water vapor in waste gas can be effectively treated through the drying cotton before the waste gas is filtered and adsorbed, and when the drying effect of one piece of drying cotton is weakened, the drying cotton can be moved to the outside of the gas drying box through the moving mechanism; one piece of drying cotton is moved into the gas drying box, so that moisture in the waste gas is evaporated in the natural environment, the other piece of drying cotton continues to move into the gas drying box, water vapor in the gas continues to be absorbed, and the situation that when the waste gas is filtered through the filter layer, water vapor in the waste gas is mixed with dust to block filter screen holes of the filter layer is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated sludge treatment, in particular to a waste gas treatment device after sludge drying. Background Art

[0002] The sludge thermal drying process is a method of removing moisture from the sludge by heating it. During the sludge drying process, irritating odors such as hydrogen sulfide, methyl mercaptan, and ammonia will be produced, which will cause varying degrees of harm to the human respiratory, digestive, endocrine and nervous systems. In order to avoid the waste gas from causing harm to the human body and the environment, the waste gas will be treated through waste gas treatment equipment at this stage.

[0003] However, the existing exhaust gas treatment device still has the following technical problems when in use:

[0004] In the process of heating, sludge will produce a large amount of water vapor in addition to exhaust gas. These water vapors are mixed with the exhaust gas, and a filter is needed to absorb the dust particles in the gas before absorbing the exhaust gas. The gas is humid, and humid gas and dust can easily clog the filter, affecting the filtering effect of the filter. The current exhaust gas treatment device does not have a gas drying device, and when the drying effect of the drying cotton inside the drying equipment is weakened, it is inconvenient to replace the drying equipment.

[0005] Therefore, a waste gas treatment device after sludge drying is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a waste gas treatment device after sludge drying to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas treatment device after sludge drying, comprising a sludge drying box, an inner box body is fixedly arranged inside the sludge drying box, and evenly arranged electric heating coils are fixedly arranged between the sludge drying box and the inner box body. A sludge discharge port is opened at the lower end of the sludge drying box, and a sealing plate is fixedly arranged inside the sludge discharge port by symmetrical bolts. A sludge discharge pipe is fixedly arranged at the upper end of the left side wall of the sludge drying box, an exhaust pipe is fixedly arranged at the upper end of the right side wall of the sludge drying box, an exhaust fan is fixedly arranged inside the exhaust pipe, and a fan is fixedly arranged at the right end of the exhaust pipe. A gas drying box is provided, a mounting frame is slidably provided inside the gas drying box, symmetrical drying cotton is fixedly provided inside the mounting frame, a moving mechanism is fixedly provided at the rear end of the gas drying box, a connecting pipe is fixedly provided on the right side wall of the gas drying box, a waste gas treatment box is fixedly provided on the right end of the connecting pipe, a bottom plate is fixedly provided on the lower end of the waste gas treatment box by bolts, a first mounting plate and a second mounting plate are fixedly provided inside the waste gas treatment box, a filter layer and a biological purification layer are fixedly provided inside the first mounting plate and the second mounting plate, respectively, and a waste gas exhaust pipe is fixedly provided on the right side wall of the waste gas treatment box.

[0008] Preferably, a motor is fixedly provided on the upper side wall of the sludge drying box via a fixed bracket, a rotating rod is fixedly provided on the output end of the motor, and a threaded stirring rod is fixedly provided on the lower end of the rotating rod.

[0009] Preferably, the evenly arranged electric heating coils are electrically connected to an external power source.

[0010] Preferably, the moving mechanism includes two fixed plates, the two fixed plates are fixedly connected to the rear side wall of the gas drying box, a bracket is commonly fixedly provided at the rear ends of the two fixed plates, a rodless cylinder is longitudinally fixedly provided inside the bracket, a slider is fixedly provided at the front end of the rodless cylinder, connecting rods are fixedly provided on the upper side wall and the lower side wall of the slider, and the other ends of the two connecting rods are fixedly connected to the two ends of the rear side wall of the mounting frame.

[0011] Preferably, a symmetrical mounting U-shaped plate is fixedly provided on the upper side wall of the base plate, the first mounting plate and the second mounting plate are both slidably connected to the inner wall of the mounting U-shaped plate, and the left side walls of the two mounting U-shaped plates are both threaded with bolts.

[0012] Preferably, a symmetrical supporting base is fixedly provided on the lower side wall of the sludge drying box.

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

[0014] Through the coordination of the gas drying box, the mounting frame, the drying cotton and the moving mechanism, it is convenient to effectively treat the water vapor inside the exhaust gas through the drying cotton before filtering and adsorbing the exhaust gas. When the drying effect of one drying cotton weakens, it can be moved to the outside of the gas drying box through the moving mechanism to evaporate the moisture therein in the natural environment, and the other drying cotton can be moved to the inside of the gas drying box to continue to absorb the water vapor in the gas, effectively avoiding the water vapor in the exhaust gas mixing with dust to block the filter mesh of the filter layer when the exhaust gas is filtered through the filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of;

[0017] Figure 3 It is a side structural schematic diagram of the moving mechanism;

[0018] Figure 4 It is a schematic diagram of the side structure of the first mounting plate and the second mounting plate.

[0019] In the figure: 1 sludge drying box, 2 inner box body, 3 electric heating ring, 4 sealing plate, 5 sludge discharge pipe, 6 exhaust pipe, 7 exhaust fan, 8 gas drying box, 9 mounting frame, 10 drying cotton, 11 connecting pipe, 12 waste gas treatment box, 13 bottom plate, 14 first mounting plate, 15 second mounting plate, 16 filter layer, 17 biological purification layer, 18 waste gas discharge pipe, 19 motor, 20 rotating rod, 21 threaded stirring rod, 22 fixed plate, 23 bracket, 24 rodless cylinder, 25 slider, 26 connecting rod, 27 installation U-shaped plate. 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] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A waste gas treatment device after sludge drying comprises a sludge drying box 1, an inner box body 2 is fixedly arranged inside the sludge drying box 1, an evenly arranged electric heating coil 3 is fixedly arranged between the sludge drying box 1 and the inner box body 2, a sludge discharge outlet is opened at the lower end of the sludge drying box 1, a sealing plate 4 is fixedly arranged inside the sludge discharge outlet by symmetrical bolts, a sludge discharge pipe 5 is fixedly arranged at the upper end of the left side wall of the sludge drying box 1, an exhaust pipe 6 is fixedly arranged at the upper end of the right side wall of the sludge drying box 1, an exhaust fan 7 is fixedly arranged inside the exhaust pipe 6, a gas drying box 8 is fixedly arranged at the right end of the exhaust pipe 6, a mounting frame 9 is slidably arranged inside the gas drying box 8, symmetrical drying cotton 10 is fixedly arranged inside the mounting frame 9, a moving mechanism is fixedly arranged at the rear end of the gas drying box 8, a connecting pipe 11 is fixedly arranged on the right side wall of the gas drying box 8, a waste gas treatment box 12 is fixedly arranged on the right end of the connecting pipe 11, and the lower end of the waste gas treatment box 12 is fixedly arranged by bolts. A bottom plate 13 is fixedly provided, and a first mounting plate 14 and a second mounting plate 15 are fixedly provided inside the waste gas treatment box 12. A filter layer 16 and a biological purification layer 17 are fixedly provided inside the first mounting plate 14 and the second mounting plate 15, respectively. A waste gas exhaust pipe 18 is fixedly provided on the right side wall of the waste gas treatment box 12. Through the cooperation of the gas drying box 8, the mounting frame 9, the drying cotton 10 and the moving mechanism, it is convenient to effectively treat the water vapor inside the waste gas through the drying cotton 10 before filtering and adsorbing the waste gas. When the drying effect of a drying cotton 10 is weakened, it can be moved to the outside of the gas drying box 8 through the moving mechanism, so that the moisture therein is evaporated in the natural environment, and the other drying cotton 10 is continued to be moved to the inside of the gas drying box 8 to continue to absorb the water vapor in the gas, effectively avoiding the water vapor in the waste gas mixing with dust to block the filter mesh of the filter layer 16 when the waste gas is filtered through the filter layer 16.

[0024] A motor 19 is fixedly provided on the upper side wall of the sludge drying box 1 through a fixed bracket, a rotating rod 20 is fixedly provided on the output end of the motor 19, and a threaded stirring rod 21 is fixedly provided on the lower end of the rotating rod 20. The rotation of the rotating rod 20 and the threaded stirring rod 21 is driven by the transmission of the motor 19, so that the sludge inside is turned over, thereby accelerating the drying of the sludge.

[0025] The evenly arranged electric heating coils 3 are electrically connected to an external power source, and the internal sludge is dried by the electric heating coils 3, so that the water mixed inside is discharged.

[0026] The moving mechanism includes two fixed plates 22, which are fixedly connected to the rear side wall of the gas drying box 8. A bracket 23 is fixedly provided at the rear ends of the two fixed plates 22. A rodless cylinder 24 is fixedly provided longitudinally inside the bracket 23. A slider 25 is fixedly provided at the front end of the rodless cylinder 24. Connecting rods 26 are fixedly provided on the upper and lower side walls of the slider 25. The other ends of the two connecting rods 26 are fixedly connected to the two ends of the rear side wall of the mounting frame 9. The device is provided with two drying cottons 10. When one drying cotton 10 is used for a long time and the drying effect is reduced due to the large amount of moisture contained inside, the mounting frame can be moved by the moving mechanism to allow the other drying cotton 10 to continue to move to the inside of the gas drying box 8 to continue drying the gas.

[0027] A symmetrical U-shaped mounting plate 27 is fixedly provided on the upper side wall of the base plate 13. The first mounting plate 14 and the second mounting plate 15 are both slidably connected to the inner wall of the U-shaped mounting plate 27. The left side walls of the two U-shaped mounting plates 27 are threaded with bolts. When the treatment effect of the filter layer 16 and the biological purification layer 17 on the waste gas decreases, they can be disassembled for easy replacement.

[0028] A symmetrical supporting base is fixedly provided on the lower side wall of the sludge drying box 1 .

[0029] Working principle:

[0030] The sludge is discharged into the sludge drying box 1 through the sludge discharge pipe 5, and the sludge is dried by the electric heating coil 3. The exhaust fan 7 is started, and the exhaust fan 7 draws the water vapor, waste gas and dust particles generated in the sludge drying process into the gas drying box 8. The water vapor in the mixed gas is dried by the drying cotton 10. When the drying effect of a drying cotton 10 decreases, the mounting frame 9 is driven to move upward by the moving mechanism, and the drying cotton 10 at the lower end of the mounting frame 9 is moved upward and continued to move to the gas drying box 8 to dry the gas, while the drying cotton 10 at the upper end is moved to the outside of the device and naturally evaporates in the air to reduce the moisture absorbed therein. The mixed gas enters the exhaust gas treatment box 12 through the connecting pipe 11, first passes through the filtration layer 16 to filter out the dust therein, and then passes through the biological purification layer 17 to absorb the harmful gas therein, and finally is discharged through the exhaust gas discharge pipe 18.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0032] 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 waste gas treatment device after sludge drying, comprising a sludge drying box (1), characterized in that: An inner box body (2) is fixedly arranged inside the sludge drying box (1), and evenly arranged electric heating coils (3) are fixedly arranged between the sludge drying box (1) and the inner box body (2). A sludge discharge outlet is opened at the lower end of the sludge drying box (1), and a sealing plate (4) is fixedly arranged inside the sludge discharge outlet by means of symmetrical bolts. A sludge discharge pipe (5) is fixedly arranged at the upper end of the left side wall of the sludge drying box (1), and an exhaust pipe (6) is fixedly arranged at the upper end of the right side wall of the sludge drying box (1). An exhaust fan (7) is fixedly arranged inside the exhaust pipe (6), and a gas drying box (8) is fixedly arranged at the right end of the exhaust pipe (6). A mounting frame (9) is slidably arranged inside the gas drying box (8). Symmetrical drying cotton (10) is fixedly arranged inside the frame (9), a moving mechanism is fixedly arranged at the rear end of the gas drying box (8), a connecting pipe (11) is fixedly arranged on the right side wall of the gas drying box (8), a waste gas treatment box (12) is fixedly arranged on the right end of the connecting pipe (11), a bottom plate (13) is fixedly arranged on the lower end of the waste gas treatment box (12) by bolts, a first mounting plate (14) and a second mounting plate (15) are fixedly arranged inside the waste gas treatment box (12), a filter layer (16) and a biological purification layer (17) are fixedly arranged inside the first mounting plate (14) and the second mounting plate (15), respectively, and a waste gas discharge pipe (18) is fixedly arranged on the right side wall of the waste gas treatment box (12).

2. The device for treating waste gas after sludge drying according to claim 1, characterized in that: A motor (19) is fixedly mounted on the upper side wall of the sludge drying box (1) via a fixing bracket, a rotating rod (20) is fixedly mounted on the output end of the motor (19), and a threaded stirring rod (21) is fixedly mounted on the lower end of the rotating rod (20).

3. The device for treating waste gas after sludge drying according to claim 1, characterized in that: The evenly arranged electric heating coils (3) are electrically connected to an external power source.

4. The device for treating waste gas after sludge drying according to claim 1, characterized in that: The moving mechanism comprises two fixed plates (22), the two fixed plates (22) are fixedly connected to the rear side wall of the gas drying box (8), a bracket (23) is fixedly provided at the rear ends of the two fixed plates (22), a rodless cylinder (24) is fixedly provided inside the bracket (23) in the longitudinal direction, a slider (25) is fixedly provided at the front end of the rodless cylinder (24), and connecting rods (26) are fixedly provided on the upper side wall and the lower side wall of the slider (25), and the other ends of the two connecting rods (26) are fixedly connected to the two ends of the rear side wall of the mounting frame (9).

5. The device for treating waste gas after sludge drying according to claim 1, characterized in that: A symmetrical mounting U-shaped plate (27) is fixedly provided on the upper side wall of the bottom plate (13); the first mounting plate (14) and the second mounting plate (15) are both slidably connected to the inner wall of the mounting U-shaped plate (27); and bolts are threadedly provided on the left side walls of the two mounting U-shaped plates (27).

6. The device for treating waste gas after sludge drying according to claim 1, characterized in that: A symmetrical supporting base is fixedly provided on the lower side wall of the sludge drying box (1).

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