Device for absorbing chlorine in chlorinated paraffin tail gas

Abstract

The utility model discloses a device for absorbing chlorine in chlorinated paraffin tail gas, which comprises a reaction kettle and an absorption box, the absorption box is internally provided with an absorption cavity, the bottom of the absorption box is fixedly connected with a shell, the interior of the shell is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a rotating rod, and the rotating rod is fixedly connected with the reaction kettle. And the top end of the rotating rod rotationally extends to the inner cavity of the absorption cavity and is fixedly connected with a rotating disc. According to the device for absorbing chlorine in chlorinated paraffin tail gas, after a rotating rod is driven by a motor to rotate, a rotating disc can be driven to rotate, and then a plurality of movable turbulent flow rods are driven to stir a saturated sodium chloride solution in an inner cavity of an absorption cavity and turbulent flow is performed on tail gas bubbles, so that the tail gas bubbles in the saturated sodium chloride solution are changed into small bubbles; furthermore, the contact effect of chlorine in the chlorinated paraffin tail gas and a saturated sodium chloride solution is improved, and the chlorine absorption effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chlorine absorption devices, in particular to a chlorine absorption device in chlorinated paraffin tail gas. Background Art

[0002] Chlorinated paraffin is a chlorinated derivative of paraffin hydrocarbons with the advantages of low volatility, flame retardancy, good electrical insulation and low price. It can be used as a flame retardant and auxiliary plasticizer for polyvinyl chloride. It is widely used in the production of cable materials, flooring materials, hoses, artificial leather and rubber products, as well as additives for polyurethane waterproof coatings, polyurethane plastic tracks and lubricating oils.

[0003] Chinese patent CN209900997U discloses a tail gas absorption device for chlorinated paraffin production. This technical solution uses a tail gas absorption box, which is internally provided with a saturated sodium chloride solution. The hydrogen chloride in the tail gas sent by the first air supply pipe reacts with the saturated sodium chloride solution inside the tail gas absorption box. The saturated sodium chloride solution fully absorbs the hydrogen chloride in the tail gas to generate a mixed liquid containing sodium chloride and hydrochloric acid. The unreacted chlorine is re-sent into the reactor through the use of a return air pipe for reaction.

[0004] However, during use, the chlorine absorption device for chlorinated paraffin tail gas has poor contact effect between the tail gas and the saturated sodium chloride solution, and thus has poor reaction effect on the chlorine in the chlorinated paraffin tail gas, which is not conducive to the treatment of chlorine in the chlorinated paraffin tail gas. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a chlorine absorption device in chlorinated paraffin tail gas, which solves the problem that the chlorine absorption device in chlorinated paraffin tail gas has poor contact effect with saturated sodium chloride solution and poor reaction effect on chlorine in chlorinated paraffin tail gas.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for absorbing chlorine in chlorinated paraffin tail gas, comprising a reactor and an absorption box, an absorption chamber is defined inside the absorption box, a shell is fixedly connected to the bottom of the absorption box, a motor is fixedly connected to the inside of the shell, a rotating rod is fixedly connected to the output shaft of the motor, the top of the rotating rod rotates and extends to the inner cavity of the absorption chamber, and is fixedly connected to a turntable, a plurality of movable spoiler rods are fixedly connected to the upper surface of the turntable, and a plurality of fixed spoiler rods are fixedly connected to the top of the inner wall of the absorption chamber;

[0007] A first connecting groove is opened at one end of the top of the inner wall of the absorption chamber, and the tail discharge port of the reactor is connected to the tail gas pipe. The other end of the tail gas pipe is connected to the lower part of the inner cavity of the first connecting groove. A second connecting groove is opened at the other end of the top of the inner wall of the absorption chamber, and the interior of the second connecting groove is provided with an exhaust structure and a liquid injection structure.

[0008] Furthermore, the exhaust structure includes a reflux pipe, which is arranged at the top of the absorption box and connected to the top of the inner cavity of the second connecting tank. A second one-way valve is provided on the reflux pipe, and the other end of the reflux pipe is connected to the lower part of the inner cavity of the reactor.

[0009] Furthermore, the liquid injection structure includes a liquid injection pipe, which is arranged at the top of the absorption box and communicates with the top of the inner cavity of the second communicating groove. A piston is detachably provided at the top end of the liquid injection pipe.

[0010] Furthermore, it also includes a recovery component, the bottom of the side wall of the recovery component is connected to a connecting pipe, and the other end of the connecting pipe is connected to the bottom of the inner cavity of the absorption chamber.

[0011] Furthermore, an inspection cover is detachably connected to the surface of the absorption box by a plurality of screws.

[0012] Furthermore, a first one-way valve is provided on the tail gas pipe.

[0013] Compared with the prior art, the beneficial effect of the present invention is that after the tail gas in the inner cavity of the reactor is discharged into the inner cavity of the first connecting tank through the tail gas pipe, the tail gas contacts the saturated sodium chloride solution in the inner cavity of the absorption chamber, and after the rotating rod is driven to rotate by the motor, the turntable can be driven to rotate, thereby driving multiple movable spoiler rods to stir the saturated sodium chloride solution in the inner cavity of the absorption chamber, disturbing the tail gas bubbles, so that the tail gas bubbles in the saturated sodium chloride solution become small bubbles, thereby improving the contact effect between the chlorine in the chlorinated paraffin tail gas and the saturated sodium chloride solution, thereby improving the absorption effect of the chlorine, and facilitating the use of the tail gas treatment work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the absorption box and absorption cavity in the utility model;

[0016] Figure 3 It is a structural schematic diagram of the turntable and the movable spoiler rod in the utility model.

[0017] In the figure: 1. Reactor; 2. Absorption box; 3. Absorption chamber; 4. First connecting groove; 5. Tail pipe; 6. First one-way valve; 7. Housing; 8. Motor; 9. Rotating rod; 10. Turntable; 11. Movable spoiler rod; 12. Fixed spoiler rod; 13. Second connecting groove; 14. Liquid injection pipe; 15. Piston; 16. Reflux pipe; 17. Second one-way valve; 18. Recovery component; 19. Connecting pipe; 20. Inspection cover; 21. Screws. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 The utility model provides a technical solution: a device for absorbing chlorine in chlorinated paraffin tail gas, comprising a reactor 1 and an absorption box 2, an absorption chamber 3 is provided inside the absorption box 2, a shell 7 is fixedly connected to the bottom of the absorption box 2, a motor 8 is fixedly connected to the inside of the shell 7, an output shaft of the motor 8 is fixedly connected to a rotating rod 9, the top end of the rotating rod 9 rotates and extends to the inner cavity of the absorption chamber 3, and is fixedly connected to a turntable 10.

[0020] A plurality of movable spoiler rods 11 are fixedly connected to the upper surface of the turntable 10 , and a plurality of fixed spoiler rods 12 are fixedly connected to the top of the inner wall of the absorption chamber 3 .

[0021] A first connecting groove 4 is opened at one end of the top of the inner wall of the absorption chamber 3, and the tail discharge port of the reactor 1 is connected to the tail gas pipe 5. The other end of the tail gas pipe 5 is connected to the lower part of the inner cavity of the first connecting groove 4. A second connecting groove 13 is opened at the other end of the top of the inner wall of the absorption chamber 3, and the interior of the second connecting groove 13 is provided with an exhaust structure and a liquid injection structure.

[0022] After the tail gas pipe 5 discharges the tail gas from the inner cavity of the reactor 1 into the inner cavity of the first connecting tank 4, the tail gas comes into contact with the saturated sodium chloride solution in the inner cavity of the absorption chamber 3. After the motor 8 drives the rotating rod 9 to rotate, it can drive the turntable 10 to rotate, and then drive multiple movable spoiler rods 11 to stir the saturated sodium chloride solution in the inner cavity of the absorption chamber 3.

[0023] The tail gas bubbles are disturbed so that the tail gas bubbles in the saturated sodium chloride solution become small bubbles, thereby improving the contact effect between the chlorine in the chlorinated paraffin tail gas and the saturated sodium chloride solution, thereby improving the absorption effect of the chlorine, which is beneficial to the treatment of the tail gas.

[0024] The exhaust structure includes a reflux pipe 16, which is arranged at the top of the absorption box 2 and communicated with the top of the inner cavity of the second connecting groove 13. A second one-way valve 17 is provided on the reflux pipe 16. The other end of the reflux pipe 16 is communicated with the lower part of the inner cavity of the reactor 1. Chlorine gas that has not reacted fully can flow back to the inner cavity of the reactor 1 through the reflux pipe 16.

[0025] The injection structure includes an injection pipe 14, which is arranged at the top of the absorption box 2 and is connected to the top of the inner cavity of the second connecting groove 13. A piston 15 is disassembled at the top of the injection pipe 14. After the piston 15 is disassembled, a saturated sodium chloride solution can be injected into the inner cavity of the absorption cavity 3 through the injection pipe 14.

[0026] It also includes a recovery component 18. The bottom of the side wall of the recovery component 18 is connected to a connecting pipe 19. The other end of the connecting pipe 19 is connected to the bottom of the inner cavity of the absorption chamber 3. The recovery component 18 is a prior art and will not be described in detail here. When the recovery component 18 is working, the saturated sodium chloride solution after the reaction in the inner cavity of the absorption chamber 3 can be extracted for subsequent treatment.

[0027] An inspection cover plate 20 is detachably connected to the surface of the absorption box 2 by means of a plurality of screws 21 , and a first one-way valve 6 is provided on the tail gas pipe 5 .

[0028] During operation, after the tail gas pipe 5 discharges the tail gas from the inner cavity of the reactor 1 into the inner cavity of the first connecting tank 4, the tail gas contacts the saturated sodium chloride solution in the inner cavity of the absorption chamber 3. After the motor 8 drives the rotating rod 9 to rotate, the turntable 10 can be driven to rotate, thereby driving multiple movable spoiler rods 11 to stir the saturated sodium chloride solution in the inner cavity of the absorption chamber 3, disturbing the tail gas bubbles, so that the tail gas bubbles in the saturated sodium chloride solution become small bubbles, thereby improving the contact effect between the chlorine in the chlorinated paraffin tail gas and the saturated sodium chloride solution, thereby improving the absorption effect of chlorine, which is beneficial to the treatment of the tail gas.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for absorbing chlorine from chlorinated paraffin tail gas, comprising a reactor (1) and an absorption box (2), characterized in that: An absorption chamber (3) is provided inside the absorption box (2), a housing (7) is fixedly connected to the bottom of the absorption box (2), a motor (8) is fixedly connected to the inside of the housing (7), an output shaft of the motor (8) is fixedly connected to a rotating rod (9), a top end of the rotating rod (9) is rotated and extended to the inner cavity of the absorption chamber (3), and is fixedly connected to a turntable (10), a plurality of movable spoiler rods (11) are fixedly connected to the upper surface of the turntable (10), and a plurality of fixed spoiler rods (12) are fixedly connected to the top of the inner wall of the absorption chamber (3); A first connecting groove (4) is provided at one end of the top of the inner wall of the absorption chamber (3); a tail gas pipe (5) is connected to the tail discharge port of the reactor (1); the other end of the tail gas pipe (5) is connected to the lower part of the inner cavity of the first connecting groove (4); a second connecting groove (13) is provided at the other end of the top of the inner wall of the absorption chamber (3); an exhaust structure and a liquid injection structure are provided inside the second connecting groove (13).

2. A chlorine absorption device in chlorinated paraffin tail gas according to claim 1, characterized in that: The exhaust structure includes a reflux pipe (16), which is arranged at the top of the absorption box (2) and communicates with the top of the inner cavity of the second connecting groove (13). A second one-way valve (17) is provided on the reflux pipe (16), and the other end of the reflux pipe (16) is communicated with the lower part of the inner cavity of the reactor (1).

3. A chlorine absorption device in chlorinated paraffin tail gas according to claim 1, characterized in that: The liquid injection structure comprises a liquid injection pipe (14), which is arranged at the top of the absorption box (2) and communicates with the top of the inner cavity of the second communicating groove (13). A piston (15) is provided at the top end of the liquid injection pipe (14) for removal.

4. A chlorine absorption device in chlorinated paraffin tail gas according to claim 1, characterized in that: It also includes a recovery component (18), the bottom of the side wall of the recovery component (18) is connected to a connecting pipe (19), and the other end of the connecting pipe (19) is connected to the bottom of the inner cavity of the absorption chamber (3).

5. A chlorine absorption device in chlorinated paraffin tail gas according to claim 1, characterized in that: The surface of the absorption box (2) is detachably connected to an inspection cover plate (20) via a plurality of screws (21).

6. A chlorine absorption device in chlorinated paraffin tail gas according to claim 1, characterized in that: The tail gas pipe (5) is provided with a first one-way valve (6).

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