Tail gas treatment device for petrochemical industry

Abstract

The utility model discloses a tail gas treatment device for petrochemical engineering, and relates to the technical field of petrochemical engineering. The device comprises a treatment bin, a treatment cavity arranged on the upper end face in the treatment bin and a recovery bin located on the lower end face of the treatment cavity, and further comprises a tail gas guide pipe connected to the upper end face of the treatment bin, and a filtering mechanism is arranged in the treatment cavity; and the exhaust pipe is connected to one side of the recovery bin. The treatment sleeve can be connected to the inner side of the stepped clamping groove in a threaded mode, so that the treatment sleeve can be rapidly disassembled and assembled, the arranged filter screen plate is composed of an activated carbon net and filter cotton, gas guided by the tail gas guiding pipe can be filtered, the gas is exhausted and guided through the exhaust port formed in the dredging pipe, and the treatment effect is good. And water filtered by the waterproof breathable film can be guided into the collecting bin through the elastic pipe, so that water vapor can be recycled, and subsequent treatment can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the petroleum chemical industry technical field, especially a kind of tail gas treatment device of petroleum chemical industry. BACKGROUND

[0002] Petroleum chemical industry, abbreviated as petroleum chemical industry, generally refers to the chemical industry taking petroleum and natural gas as raw materials, which is very wide in range and has many products. Crude oil is cracked, reformed and separated to provide basic raw materials, such as ethylene, propylene, butene, butadiene, benzene, toluene, xylene, naphthalene, etc.

[0003] In the production of petroleum chemical industry, a large amount of tail gas is generally produced, which contains a large amount of toxic gas. If it is not treated in time, it will harm the surrounding environment, and the tail gas will have heat when discharged. If it is not recycled in time, it will cause heat waste, and water vapor will be produced during tail gas treatment, which will affect the efficiency of tail gas separation. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a tail gas treatment device for petroleum chemical industry, which can effectively solve the problems of the prior art.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] The utility model is a tail gas treatment device for petroleum chemical industry, which comprises a treatment bin, a treatment cavity arranged on the upper end face of the treatment bin and a recovery bin located at the lower end face of the treatment cavity, and further comprises:

[0007] A tail gas guide pipe is connected to the upper end face of the treatment bin. A filter mechanism is arranged in the interior of the treatment cavity for filtering gas.

[0008] An exhaust pipe is connected to one side of the recovery bin. A sealing cover plate is rotatably connected to one end of the recovery bin, and the sealing cover plate is used to block the recovery bin.

[0009] A heat conduction mechanism is arranged on one side of the treatment bin for recycling the heat in the tail gas.

[0010] Further, a stepped clamping groove is formed in the inner wall of the treatment cavity, and a thread is arranged on the inner wall of the stepped clamping groove.

[0011] Further, the filtering mechanism comprises a processing sleeve, filter screens, a drainage pipe and exhaust ports, the processing sleeve is arranged on the inner side of the processing cavity and is connected with the threads of the inner wall of the stepped clamping groove, the filter screens are arranged in multiple groups and are arranged on the inner side of the processing sleeve, the drainage pipe is fixed on the lower end surface of the processing sleeve, the cross section of the drainage pipe is in a trapezoidal structure and the inner wall of the drainage pipe is provided with a waterproof and breathable film, and the exhaust ports are uniformly arranged on the inner side of the drainage pipe.

[0012] Further, the lower end of the drainage pipe is connected with an elastic pipe, the inner lower end of the recovery bin is provided with a collection bin and the other end of the elastic pipe extends into the collection bin.

[0013] Further, the heat conduction mechanism comprises a water bin body, a connecting pump, a spiral pipe and a heat conduction cavity, the heat conduction cavity is arranged between the processing bin and the processing cavity, the water bin body is fixed on one side of the processing bin, the connecting pump is fixed on the inner lower end of the water bin body, the spiral pipe is connected with the tail end of the connecting pump and is arranged in the heat conduction cavity, and the other end of the spiral pipe returns to the upper end of the water bin body.

[0014] The utility model has the following beneficial effects:

[0015] The processing sleeve can be quickly disassembled and installed by being threadedly connected on the inner side of the stepped clamping groove, so that subsequent maintenance and repair are facilitated, the filter screens are composed of activated carbon screens and filter cotton, can filter the gas guided by the tail gas guide pipe, the exhaust ports arranged in the drainage pipe guide the gas out, so that the filtered gas can be discharged, and the water filtered by the waterproof and breathable film can be guided into the collection bin through the elastic pipe, so that the water vapor can be recovered, thereby ensuring subsequent processing, and finally, the heat conduction mechanism can contact the processing cavity, so that the heat in the tail gas can be recycled and utilized, thereby facilitating subsequent processing. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0017] Figure 1 It is a top view schematic diagram of the tail gas treatment device of the utility model petrochemical industry;

[0018] Figure 2 It is a bottom view schematic diagram of the tail gas treatment device of the utility model petrochemical industry;

[0019] Figure 3 It is an inner view schematic diagram of the recovery bin of the utility model.

[0020] Figure 4 It is the processing sleeve top view schematic diagram of the utility model;

[0021] Figure 5 It is the petroleum chemical industry's tail gas treatment device cross section schematic diagram.

[0022] In the drawing, the component list represented by each sign is as follows:

[0023] 1, processing bin;2, tail gas guide pipe;3, processing cavity;4, stepped clamping groove;5, processing sleeve;6, filter screen;7, dredging pipe;8, exhaust port;9, recovery bin;10, exhaust pipe;11, elastic pipe;12, collection bin;13, sealing cover plate;14, water bin body;15, connecting pump;16, spiral pipe;17, heat conduction cavity. Specific implementation

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0025] Please refer to Figures 1-5 The utility model discloses a kind of petroleum chemical industry's tail gas treatment device, including processing bin 1, processing cavity 3 being arranged in the upper end surface of processing bin 1 and located in the lower end surface of processing cavity 3 recovery bin 9, still include:

[0026] Tail gas guide pipe 2 is connected in the upper end surface of processing bin 1, and the inside of processing cavity 3 is provided with filter mechanism, for filtering gas;The inner wall of processing cavity 3 is provided with stepped clamping groove 4, and the inner wall of stepped clamping groove 4 is provided with thread, and the thread in the built-in stepped clamping groove 4 can be connected with the surface of processing sleeve 5, so that the position of processing sleeve 5 can be limited, and processing sleeve 5 is disassembled and installed, so that subsequent overhaul and maintenance can be facilitated;Filter mechanism includes processing sleeve 5, filter screen 6, dredging pipe 7 and exhaust port 8, processing sleeve 5 is arranged in the inside of processing cavity 3 and is connected with the thread of the inner wall of stepped clamping groove 4, filter screen 6 is provided with multiple groups and is located in the inside of processing sleeve 5, dredging pipe 7 is fixed in the lower end surface of processing sleeve 5, the cross section of dredging pipe 7 is trapezoidal structure and the inner wall of dredging pipe 7 is provided with waterproof air-permeable membrane, and exhaust port 8 is evenly arranged in the inside of dredging pipe 7, and filter screen 6 is composed of activated carbon screen and filter cotton by setting, which can filter the gas guided by tail gas guide pipe 2, and the tail gas guided by tail gas guide pipe 2 can pass through filter screen 6 to filter, so that subsequent treatment can be guaranteed, and the exhaust port 8 arranged in the inside of dredging pipe 7 guides the gas exhaust, so that subsequent exhaust through exhaust pipe 10 can be facilitated, so that the filtered gas can be discharged;

[0027] The exhaust pipe 10 is connected to one side of the recovery bin 9, one end of the recovery bin 9 is rotatably connected with a sealing cover plate 13, and the sealing cover plate 13 is used for plugging the recovery bin 9; the lower end of the dredging pipe 7 is connected with an elastic pipe 11, the inside lower end of the recovery bin 9 is provided with a collection bin 12, and the other end of the elastic pipe 11 extends into the collection bin 12; the water vapor in the guided tail gas can be filtered by the waterproof air permeable film and guided through the dredging pipe 7, so that the water in the collection bin 12 can be guided into the water tank through the elastic pipe 11, thereby facilitating subsequent recovery and treatment.

[0028] The heat conduction mechanism is arranged on one side of the treatment bin 1 and is used for recycling heat in the tail gas; the heat conduction mechanism comprises a water tank body 14, a connecting pump 15, a spiral pipe 16 and a heat conduction cavity 17, the heat conduction cavity 17 is arranged between the treatment bin 1 and the treatment cavity 3, the water tank body 14 is fixed on one side of the treatment bin 1, the connecting pump 15 is fixed to the inside lower end of the water tank body 14, the spiral pipe 16 is connected to the tail end of the connecting pump 15, and the spiral pipe 16 is arranged in the heat conduction cavity 17, and the other end of the spiral pipe 16 flows back to the upper end of the water tank body 14; the water tank body 14 can guide water, the connecting pump 15 can be opened, and the spiral pipe 16 can guide the water into the heat conduction cavity 17; since the spiral pipe 16 can be in contact with the surface of the treatment cavity 3, the heat in the tail gas can be recycled, and the water tank body 14 is arranged on one side of the water tank body 14, so that the water can be circulated, the heat in the tail gas can be recycled, and subsequent treatment is facilitated.

[0029] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement of the technical solutions recorded in the above embodiments, belongs to the protection scope of the present application.

Claims

1. A petrochemical tail gas treatment device comprising a treatment bin (1), a treatment cavity (3) arranged on the upper end face inside the treatment bin (1), and a recovery bin (9) located at the lower end face of the treatment cavity (3), characterized in that, Also include: Tail gas guide pipe (2) is connected in the upper end surface of the processing bin (1), the inside of processing cavity (3) is provided with filter mechanism, is used for filtering to gas; Exhaust pipe (10) is connected in one side of recovery bin (9), one end of recovery bin (9) is rotatably connected with sealing cover plate (13), and sealing cover plate (13) is used to block recovery bin (9). Heat conduction mechanism is arranged in one side of processing bin (1), is used for recycling and utilizing the heat in tail gas.

2. The petroleum chemical tail gas treatment device according to claim 1, characterized in that, The inner wall of the processing cavity (3) is provided with a stepped clamping groove (4), and the inner wall of the stepped clamping groove (4) is provided with a thread.

3. The petrochemical off-gas treatment device according to claim 2, characterized in that The filter mechanism includes a processing sleeve (5), a filter screen (6), a drainage pipe (7) and an exhaust port (8), the processing sleeve (5) is arranged on the inner side of the processing cavity (3) and connected with the thread on the inner wall of the stepped clamping groove (4), the filter screen (6) is provided with multiple groups and located on the inner side of the processing sleeve (5), the drainage pipe (7) is fixed on the lower end surface of the processing sleeve (5), the cross section of the drainage pipe (7) is trapezoidal structure and the inner wall of the drainage pipe (7) is provided with a waterproof and breathable film, and the exhaust port (8) is evenly arranged on the inner side of the drainage pipe (7).

4. The petrochemical tail gas treatment device according to claim 3, characterized in that The lower end of the drainage pipe (7) is connected with an elastic pipe (11), the inside of the recovery bin (9) is provided with a collecting bin (12), and the other end of the elastic pipe (11) extends into the collecting bin (12).

5. The petrochemical off-gas treatment device according to claim 1, characterized in that, The heat conduction mechanism includes a water tank body (14), a connecting pump (15), a spiral pipe (16) and a heat conduction cavity (17), the heat conduction cavity (17) is arranged between the processing bin (1) and the processing cavity (3), the water tank body (14) is fixed on one side of the processing bin (1), the connecting pump (15) is fixed on the inside lower end of the water tank body (14), the spiral pipe (16) is connected to the tail end of the connecting pump (15), and the spiral pipe (16) is arranged in the heat conduction cavity (17), and the other end of the spiral pipe (16) flows back to the upper end of the water tank body (14).

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