Rotary kiln hot air backflow device with stepped desulfurization treatment

Abstract

The utility model discloses a rotary kiln hot air backflow device with stepped desulfurization treatment, which comprises a heat exchange cylinder, a heat exchange tube mounted in the heat exchange cylinder in a penetrating manner, a treatment box arranged on the left side of the heat exchange cylinder, an activated carbon filtering and purifying net, an air inlet and an air outlet, the activated carbon filtering and purifying net is inserted and mounted at the right end of the treatment box, the pipeline is fixedly mounted at the upper end of the left side of the treatment box, and a plurality of groups of atomizing nozzles are mounted at the lower end of the pipeline. According to the rotary kiln hot air backflow device with the stepped desulfurization treatment function, gas can be filtered and purified, impurity particles in the gas are prevented from being discharged outwards to pollute the environment, an activated carbon filtering and purifying net can be conveniently detached and cleaned through the arrangement of a fixing mechanism, the gas is sprayed in combination with a pipeline and an atomizing nozzle, and therefore the gas can be effectively purified. Therefore, the gas can be exhausted after being subjected to desulfurization treatment.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary kiln hot air backflow related technical field, concretely is a kind of rotary kiln hot air backflow device with stepped desulfurization treatment. BACKGROUND

[0002] Rotary kiln is a kind of rotary calcining kiln belonging to building material equipment, mainly used for cement pigment production, construction equipment and garbage incineration etc., is widely used in heating and calcining various mineral materials, in the working process of rotary kiln, the hot air hot gas discharged outward contains a large amount of heat, the energy in hot air can be recycled by corresponding hot air backflow device;

[0003] Such as announcement number CN214502114U, discloses a rotary kiln heat recovery and utilization device, it includes rotary kiln, the rotary kiln one end is equipped with kiln tail exhaust chamber, the kiln tail exhaust chamber one side is equipped with drying box, the drying box is connected with kiln tail exhaust chamber between heat removal pipe, the heat removal pipe two ends are connected with drying box, kiln tail exhaust chamber respectively communicate.In drying box, when the rotary kiln works, the present application has waste heat gradually into kiln tail exhaust chamber and enters drying box through heat removal pipe, thereby drying the material in drying box, so that the waste heat of rotary kiln is fully utilized effect;

[0004] However, in the prior art, after heat is recycled, it is inconvenient to filter and purify the impurity particles in the gas, and there is a lack of components for desulfurization treatment of the gas, and the sulfides contained in the gas are directly discharged, which can pollute the environment, for example, the above-mentioned comparative patent has this problem;

[0005] Therefore, we propose a rotary kiln hot air backflow device with stepped desulfurization treatment to solve the above problems. Utility model content

[0006] The utility model aims at providing a rotary kiln hot air backflow device with stepped desulfurization treatment to solve the problem of the prior art that after heat is recycled, it is inconvenient to filter and purify the impurity particles in the gas, and there is a lack of components for desulfurization treatment of the gas, and the sulfides contained in the gas are directly discharged, which can pollute the environment.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a rotary kiln hot air backflow device with stepped desulfurization treatment, comprising a heat exchange cylinder, a heat exchange pipe installed inside the heat exchange cylinder and a treatment box arranged on the left side of the heat exchange cylinder, the right end of the heat exchange pipe is connected with the gas outlet of the rotary kiln.

[0008] Further comprising:

[0009] The active carbon filter purification net is insertedly installed at the right end of the treatment box, and the lower end of the active carbon filter purification net is fixedly connected with a support plate, a sealing gasket is arranged between the support plate and the lower end of the treatment box, and a fixing mechanism is arranged below the support plate;

[0010] The fixing mechanism drives the support plate and the active carbon filter purification net to form a dismounting structure at the right end of the treatment box, and the fixing mechanism is composed of a side plate, a fixing hole, a support column, a spring and a movable stopper;

[0011] A pipeline is fixedly installed at the upper end of the left side of the treatment box, and a plurality of atomizing nozzles are installed at the lower end of the pipeline.

[0012] Preferably, the heat exchange pipe is curved inside the heat exchange cylinder, and the left end of the heat exchange pipe is connected with the treatment box, and a drain valve is installed at the lower end of the heat exchange cylinder.

[0013] Preferably, a sewage groove is formed at the right lower end of the treatment box, and the active carbon filter purification net is arranged in the sewage groove, a side plate is fixedly connected with the right lower end of the treatment box, and the side plate is symmetrically arranged on the left and right sides of the support plate, and the side plate is arranged on the left and right sides of the support column.

[0014] Preferably, the spring is arranged on the left and right sides of the support column, and the movable end of the spring is fixedly connected with the movable stopper, and the support column is arranged at the lower end of the support plate.

[0015] Preferably, the movable stopper is telescopically connected on the left and right sides of the support column, and the support column is inserted into the fixing hole, the upper side of the support column is matched with the lower end of the fixing hole, and the fixing hole is formed at the front and rear ends of the side plate.

[0016] Preferably, an exhaust port is arranged on the outside of the left upper end of the treatment box, and a fixing box is fixedly connected with the middle of the lower end of the treatment box, and a drain valve is installed at the lower end of the fixing box.

[0017] Compared with the prior art, the rotary kiln hot air backflow device with the stepped desulfurization treatment has the advantages that: the heat exchange cylinder and the heat exchange pipe are arranged to facilitate heat recovery treatment of the heat of the gas, the gas is introduced into the treatment box, and the active carbon filter purification net is arranged to filter and purify the gas, prevent the impurity particles in the gas from being discharged to pollute the environment, the fixing mechanism is arranged to facilitate dismounting and cleaning of the active carbon filter purification net, prevent the active carbon filter purification net from being blocked during long-term use, the pipeline and the atomizing nozzle are arranged to spray the gas, and thus the gas can be desulfurized and then discharged;

[0018] 1. Equipped with heat exchange tubes and activated carbon filter, the heat exchange tubes heat the cool water inside the heat exchange cylinder to achieve the heat exchange effect, and the activated carbon filter can filter and purify impurities in the gas to prevent impurity particles from being discharged and causing environmental pollution.

[0019] 2. A fixing mechanism is provided, which includes a side plate, fixing holes, support columns, springs and movable blocks. The fixing mechanism facilitates the disassembly and cleaning of the activated carbon filter and prevents the activated carbon filter from becoming clogged during long-term use.

[0020] 3. It is equipped with pipes and atomizing nozzles. Multiple sets of atomizing nozzles are installed at the lower end of the pipes. The gas inside the treatment box is sprayed and desulfurized through the pipes and atomizing nozzles to prevent the sulfur compounds in the gas from being discharged to the outside and causing environmental pollution. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0023] Figure 3 This is a frontal sectional view of the present invention.

[0024] Figure 4 This is a schematic diagram showing the exploded structure of the treatment box, activated carbon filter, and pipeline of this utility model.

[0025] Figure 5 This is a schematic diagram of the activated carbon filter purification screen and treatment box in disassembled state according to this utility model;

[0026] Figure 6 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0027] Figure 7 This is an exploded structural diagram of the side plate and support column of this utility model;

[0028] Figure 8 This is a top-view schematic diagram of the overall structure of the pipeline and atomizing nozzle of this utility model.

[0029] In the diagram: 1. Heat exchange cylinder; 2. Heat exchange tube; 3. Drain valve; 4. Treatment box; 5. Sewage discharge trough; 6. Activated carbon filter purification screen; 7. Support plate; 8. Fixing mechanism; 9. Side plate; 10. Fixing hole; 11. Support column; 12. Spring; 13. Movable stop; 14. Pipe; 15. Atomizing nozzle; 16. Exhaust port; 17. Fixing box; 18. Discharge valve. Detailed Implementation

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0031] Please refer to Figures 1-8 The present application provides the following technical solutions.

[0032] Embodiment 1: In order to solve the problem that it is inconvenient to filter and purify impurity particles in the gas after heat recovery in the prior art, therefore, the present embodiment provides a rotary kiln hot air reflux device with stepped desulfurization treatment, which is provided with a heat exchange cylinder 1, a heat exchange pipe 2 penetratingly installed in the heat exchange cylinder 1, and a treatment box 4 arranged on the left side of the heat exchange cylinder 1. The right end of the heat exchange pipe 2 is connected with a gas discharge outlet of a rotary kiln, a blowdown tank 5, an activated carbon filter purification net 6, and a support plate 7. The activated carbon filter purification net 6 is plug-in installed at the right end of the treatment box 4, and the lower end of the activated carbon filter purification net 6 is fixedly connected with the support plate 7. A sealing gasket is arranged between the support plate 7 and the lower end of the treatment box 4. The blowdown tank 5 is arranged at the lower right end of the treatment box 4, and the activated carbon filter purification net 6 penetrates through the blowdown tank 5. As shown in Figure 1 、 Figure 3 and Figure 4 , the gas generated during the working process of the rotary kiln enters the heat exchange pipe 2, and the heat exchange cylinder 1 contains an appropriate amount of cool water, and the heat exchange pipe 2 is immersed in the cool water in the heat exchange cylinder 1. The high-temperature gas in the heat exchange pipe 2 heats the cool water in the heat exchange cylinder 1, achieving the effect of heat exchange, so as to conveniently recycle the heat in the gas. The cool water in the heat exchange cylinder 1 can be discharged outwardly for use after being heated, and the heat-exchanged gas enters the treatment box 4. Through the arrangement of the blowdown tank 5, the impurity particles in the gas can be filtered and treated, preventing the impurity particles in the gas from polluting the environment after being discharged outwardly.

[0033] Embodiment 2: In order to solve the problems existing in the prior art, therefore, the embodiment is provided with a rotary kiln hot air backflow device with stepped desulfurization treatment, which is provided with a fixing mechanism 8, the lower portion of the supporting plate 7 is provided with the fixing mechanism 8, the fixing mechanism 8 drives the supporting plate 7 and the activated carbon filter purification net 6 to form a disassembly structure at the right end of the treatment box 4, and the fixing mechanism 8 is composed of a side plate 9, a fixing hole 10, a supporting column 11, a spring 12 and a movable stop block 13, the right lower end of the treatment box 4 is fixedly connected with the side plate 9, and the side plate 9 is symmetrically arranged on the left and right sides of the supporting plate 7, the side plate 9 is respectively arranged on the left and right sides of the supporting column 11, the left and right sides of the supporting column 11 are both provided with the spring 12, and the movable end of the spring 12 is fixedly connected with the movable stop block 13, the supporting column 11 is arranged on the lower end of the supporting plate 7, the movable stop block 13 is respectively connected on the left and right sides of the supporting column 11 in an extension and contraction mode, and the supporting column 11 is inserted into the fixing hole 10, the upper side of the supporting column 11 is matched with the lower portion of the fixing hole 10, and the fixing hole 10 is respectively arranged on the front and rear ends of the side plate 9, as shown in Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 , after use, a thinner rod-shaped object is inserted into the fixing hole 10 to extrude the movable stop block 13, the movable stop block 13 and the supporting column 11 are in extension and contraction sliding mode, the movable stop block 13 extrudes the spring 12, the spring 12 is elastically deformed, the movable stop block 13 is removed from the fixing hole 10, the limiting between the side plate 9 and the supporting column 11 is released, the supporting column 11 is pulled down and removed from the lower end of the supporting plate 7, the limiting between the supporting plate 7 and the treatment box 4 is released, the supporting plate 7 is pulled down, the supporting plate 7 drives the activated carbon filter purification net 6 to be removed from the treatment box 4, the activated carbon filter purification net 6 is conveniently disassembled and cleaned, the activated carbon filter purification net 6 is prevented from being blocked during long-term use, and the filtered impurity particles are discharged outward through the blowdown tank 5.

[0034] Embodiment 3: In order to solve the problems that the prior art lacks a component for desulfurization treatment of gas, and the sulfides contained in the gas are directly discharged to pollute the environment, therefore, the embodiment is provided with a rotary kiln hot air backflow device with stepped desulfurization treatment, which is provided with a pipeline 14, an atomizing nozzle 15, an exhaust port 16, a fixing box 17 and a discharge valve 18, the pipeline 14 is fixedly installed on the upper end of the left side of the treatment box 4, a plurality of groups of atomizing nozzles 15 are installed on the lower end of the pipeline 14, the outer side of the left upper end of the treatment box 4 is provided with the exhaust port 16, the middle portion of the lower end of the treatment box 4 is fixedly connected with the fixing box 17, the lower end of the fixing box 17 is installed with the discharge valve 18, as shown in Figure 3 、 Figure 4 and Figure 8As shown, after heat exchange, the gas enters the treatment box 4 and is filtered by the activated carbon filter purification net 6, after the treatment is completed, the pipeline 14 is connected with the external pump body, the pump body draws the desulfurization liquid into the pipeline 14 and the atomizing nozzle 15, and sprays the desulfurization liquid to the inside of the treatment box 4, so that the gas can be desulfurized, and after the desulfurization treatment is completed, it is discharged outward through the exhaust port 16, effectively reducing the pollution to the environment, and the sprayed desulfurization liquid enters the fixed box 17 for collection, and after use, the discharge valve 18 is opened to discharge outward.

[0035] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln hot air backflow device provided with stepped desulfurization treatment, comprising a heat exchange cylinder (1), a heat exchange pipe (2) installed through the inside of the heat exchange cylinder (1), and a treatment box (4) provided on the left side of the heat exchange cylinder (1), the right end of the heat exchange pipe (2) being connected with the gas discharge port of the rotary kiln; characterized in that Further comprising: an activated carbon filter purification net (6) which is inserted and installed at the right end of the treatment box (4), and the lower end of the activated carbon filter purification net (6) is fixedly connected with a support plate (7), a sealing gasket is provided between the support plate (7) and the lower end of the treatment box (4), and a fixing mechanism (8) is provided below the support plate (7); Wherein, the fixing mechanism (8) drives the support plate (7) and the activated carbon filter purification net (6) to form a disassembly structure at the right end of the treatment box (4), and the fixing mechanism (8) is composed of a side plate (9), a fixing hole (10), a support column (11), a spring (12) and a movable stop block (13); A pipeline (14) is fixedly installed at the upper end of the left side of the treatment box (4), and a plurality of atomizing nozzles (15) are installed at the lower end of the pipeline (14).

2. A hot air recirculation device for a rotary kiln provided with a stepped desulfurization treatment according to claim 1, characterized in that: The heat exchange pipe (2) is curved inside the heat exchange cylinder (1), and the left end of the heat exchange pipe (2) is connected with the treatment box (4), and a drain valve (3) is installed at the lower end of the heat exchange cylinder (1).

3. A hot gas recirculation device for a rotary kiln provided with a stepped desulfurization treatment according to claim 1, characterized in that: A sewage groove (5) is formed at the right lower end of the treatment box (4), and the activated carbon filter purification net (6) is provided through the sewage groove (5), the right lower end of the treatment box (4) is fixedly connected with the side plate (9), and the side plate (9) is symmetrically provided on the left and right sides of the support plate (7), and the side plate (9) is respectively provided on the left and right sides of the support column (11).

4. A hot gas recirculation device for a rotary kiln provided with a stepped desulfurization treatment according to claim 1, characterized in that: The left and right sides of the support column (11) are provided with springs (12), and the movable end of the spring (12) is fixedly connected with a movable stop block (13), and the support column (11) is provided on the lower end of the support plate (7).

5. A hot gas recirculation device for a rotary kiln provided with a stepped desulfurization treatment according to claim 4, characterized in that: The movable stop block (13) is respectively connected on the left and right sides of the support column (11), and the support column (11) is inserted into the fixing hole (10), the upper side of the support column (11) is matched with the lower side of the fixing hole (10), and the fixing hole (10) is respectively formed on the front and rear ends of the side plate (9).

6. A hot gas recirculation device for a rotary kiln provided with a stepped desulfurization treatment according to claim 1, characterized in that: An exhaust port (16) is provided on the outside of the left upper end of the treatment box (4), and a fixed box (17) is fixedly connected to the middle of the lower end of the treatment box (4), and a discharge valve (18) is installed at the lower end of the fixed box (17).

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