Circulating chlorinated paraffin reaction kettle

Abstract

The utility model relates to the technical field of reaction kettles, and provides a circulating chlorinated paraffin reaction kettle which comprises a bottom plate, and a circulating mechanism is arranged above the bottom plate. By arranging the circulating mechanism, when chlorinated paraffin is prepared in the reaction kettle, liquid paraffin and chlorine can be stirred by using a stirring rod in a rotating state, the reaction efficiency of the liquid paraffin and the chlorine is improved, and tail gas generated after the reaction of the liquid paraffin and the chlorine enters the storage box to be stored and purified; the residual chlorine in the tail gas can enter the reaction kettle main body again through the connecting pipe and the gas inlet pipe to participate in the reaction, so that the residual chlorine in the tail gas is recycled, the tail gas emission is reduced, the chlorine waste is avoided, and the purpose of reducing the cost is achieved. According to the technical scheme, the problems that chlorine is wasted and the cost is increased due to direct emission since chlorine introduced into the reaction kettle cannot completely react with liquid paraffin in the production process of chlorinated paraffin and chlorine is still remained in tail gas discharged subsequently in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, and in particular to a circulating chlorinated paraffin reactor. Background Art

[0002] A reactor in a broad sense refers to a container for physical or chemical reactions. The heating, evaporation, cooling and low-speed mixing functions required by the process are achieved through the structural design and parameter configuration of the container. Chlorinated paraffin is a chlorinated derivative of paraffin hydrocarbons. It has 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, floor materials, hoses, artificial leather, rubber and other products, as well as additives for coatings and lubricants. When preparing chlorinated paraffin, the reactor is an indispensable preparation device.

[0003] In the prior art, the utility model with the authorization announcement number CN211436200U is named: A chlorinated paraffin preparation reactor. The patent drives the active gear to rotate through the output shaft of the motor, and the active gear drives the teeth and the mixing box to rotate. The mixing box drives the liquid to rotate, and cooperates with the stirring of the mixing rod to improve the reaction efficiency. After the reaction is completed, the material pipe is rotated downward to discharge the material, and then the motor is started again. The water pump draws the water in the water tank to the water pipe, and then the water pipe is transmitted to the fixed pipe, and finally sprayed to the inner wall of the mixing box by the nozzle. The mixing box rotates to receive the spraying, so that it is evenly cleaned, and the cleaning wastewater is also discharged from the material pipe, which solves the problem that the existing chlorinated paraffin reactor cannot be cleaned in time after the preparation work, resulting in corrosion of the inner wall of the reactor, thereby shortening the service life of the reactor;

[0004] In the prior art, the utility model with the authorization announcement number CN220159964U is named: A reactor for the production of chlorinated paraffin. The patent improves the mixing efficiency and reduces the stagnation phenomenon in the reaction process by setting a mixer. The reactor body can withstand high temperature and high pressure reaction conditions. The reactor body also includes different shapes such as a flat bottom reactor or a spherical reactor.

[0005] Both of the above-mentioned patents can realize the production of chlorinated paraffin. However, since the chlorine gas introduced into the reactor during the production of chlorinated paraffin cannot completely react with the liquid paraffin, chlorine gas still remains in the exhaust gas discharged subsequently. Direct discharge will cause waste of chlorine gas and increase costs. Therefore, we propose a circulating chlorinated paraffin reactor. Utility Model Content

[0006] The utility model provides a circulating chlorinated paraffin reactor, which solves the problem in the related art that chlorine gas introduced into the reactor during the production process of chlorinated paraffin cannot completely react with liquid paraffin, chlorine gas still remains in the tail gas subsequently discharged, and direct discharge will cause waste of chlorine gas and increase costs.

[0007] The technical scheme of the utility model is as follows: a circulating chlorinated paraffin reactor, comprising a bottom plate, a circulation mechanism is arranged above the bottom plate, the circulation mechanism comprises a reactor body fixedly connected to the bottom plate, a servo motor is installed on the upper surface of the reactor body, a rotating rod is fixedly connected to the output shaft end of the servo motor, the rotating rod is rotatably connected to the reactor body, a plurality of stirring rods arranged at equal distances are fixedly connected to the outer surface of the rotating rod, a feed pipe and an exhaust pipe are connected to the upper surface of the reactor body, a storage box is fixedly connected to the outer surface of the reactor body, the exhaust pipe is connected to the storage box, the upper surface of the storage box is connected to a connecting pipe, a control valve is installed on the outer surface of the connecting pipe, an air intake pipe is connected to the outer surface of the reactor body, the connecting pipe is connected to the air intake pipe, and a check valve is installed on the outer surface of the air intake pipe.

[0008] Preferably, the inner wall of the reactor body is inlaid with a bearing, and the inner ring of the bearing is fixedly connected to the outer surface of the rotating rod. The bearing can make the rotating rod more stable during rotation and reduce the resistance of the rotating rod during rotation, thereby avoiding jamming and swinging of the rotating rod during use.

[0009] Preferably, the bottom surface of the reactor body is connected with a discharge pipe, and a control valve is installed on the outer surface of the discharge pipe. The prepared chlorinated paraffin can be discharged from the reactor body by opening the control valve on the discharge pipe.

[0010] Preferably, a pump body is installed on the outer surface of the reactor body, the input end of the pump body is connected to a liquid inlet pipe, the liquid inlet pipe is connected to the reactor body, the output end of the pump body is connected to a liquid outlet pipe, the liquid outlet pipe is connected to the reactor body, and starting the pump body can generate sufficient suction to transport the liquid paraffin at the bottom of the internal space of the reactor body through the liquid inlet pipe, the pump body and the liquid outlet pipe in sequence until it is transported to the top position in the internal space of the reactor body, so that the liquid paraffin and chlorine are mixed more fully and thoroughly and the reaction is complete.

[0011] Preferably, a control panel is fixedly connected to the outer surface of the reactor body, the servo motor is electrically connected to the control panel, and the pump body is electrically connected to the control panel. The control panel can be conveniently used to uniformly control the electrical components in the circulating chlorinated paraffin reactor, thereby improving convenience during use. The specific installation position of the control panel is selected according to actual use requirements to facilitate the operator to perform operation and control.

[0012] Preferably, four sleeves are fixedly connected to the outer surface of the rotating rod, and the inner wall of each sleeve is slidably connected to a sliding rod. The inner wall of the reactor body is slidably connected to two scrapers, and the sliding rod is fixedly connected to the scrapers. The rotating rod provides fixed support for the sleeve, and the sliding rod can slide in the inner wall of the sleeve. The sliding rod provides fixed support for the scrapers, and the scrapers are in contact with the inner wall of the reactor body.

[0013] Preferably, the inner wall of each sleeve is fixedly connected with a return spring, and the return spring is fixedly connected to the slide rod. In the utility model, the return spring is in a compressed state. Under the resetting action of the return spring, the return spring tends to expand outward, thereby driving the scraper to fit tightly with the inner wall of the reactor body through the slide rod, and when the rotating rod rotates, the scraper can be driven to rotate to scrape off the liquid paraffin remaining on the inner wall of the reactor body, thereby facilitating subsequent cleaning.

[0014] Preferably, a nameplate is fixedly connected to the outer surface of the reactor body, and the manufacturer of the circulating chlorinated paraffin reactor and some technical data under rated working conditions can be recorded on the nameplate for correct use without damage.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. In the utility model, by the coordinated arrangement of the bottom plate and the circulation mechanism, when preparing chlorinated paraffin in the reactor, liquid paraffin can be injected into the reactor body through the feed pipe, and then chlorine gas is injected from the air inlet pipe located at the lower side of the reactor body, and the two are stirred by using a plurality of stirring rods arranged at equal distances in a rotating state, so as to improve the reaction efficiency of the two. The tail gas generated after the reaction of the two enters the storage box for storage and purification, and the residual chlorine in the tail gas can enter the air inlet pipe through the connecting pipe, and then enter the reactor body again to participate in the reaction, so as to realize the recycling of the residual chlorine in the tail gas and reduce the exhaust gas emission, thereby avoiding the waste of chlorine gas and achieving the purpose of reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic front view of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the reactor body of the utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the sleeve of the utility model.

[0022] In the figure: 1. bottom plate; 2. circulation mechanism; 201. reactor body; 202. servo motor; 203. rotating rod; 204. stirring rod; 205. feeding pipe; 206. exhaust pipe; 207. storage box; 208. connecting pipe; 209. air inlet pipe; 3. bearing; 4. discharge pipe; 5. pump body; 6. liquid inlet pipe; 7. liquid outlet pipe; 8. control panel; 9. sleeve; 10. sliding rod; 11. scraper; 12. reset spring; 13. nameplate. DETAILED DESCRIPTION

[0023] The following will be combined with 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 of 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] Example 1

[0025] like Figure 1 to Figure 3 As shown, this embodiment proposes a circulating chlorinated paraffin reactor, including a bottom plate 1, a circulation mechanism 2 is arranged above the bottom plate 1, the circulation mechanism 2 includes a reactor body 201 fixedly connected to the bottom plate 1, a servo motor 202 is installed on the upper surface of the reactor body 201, a rotating rod 203 is fixedly connected to the output shaft end of the servo motor 202, the rotating rod 203 is rotatably connected to the reactor body 201, and a plurality of stirring rods 204 arranged at equal distances are fixedly connected to the outer surface of the rotating rod 203.

[0026] The bottom plate 1 provides fixed support for the reactor body 201, and the reactor body 201 provides fixed support for the servo motor 202. After the servo motor 202 is started, it can drive the rotating rod 203 to rotate inside the reactor body 201, thereby driving a plurality of stirring rods 204 to rotate. The number of stirring rods 204 can be increased or decreased according to actual production conditions.

[0027] The inner wall of the reactor body 201 is inlaid with a bearing 3, and the inner ring of the bearing 3 is fixedly connected to the outer surface of the rotating rod 203. The bearing 3 can make the rotating rod 203 more stable when rotating, and reduce the resistance of the rotating rod 203 when rotating, avoiding the rotating rod 203 from getting stuck and swinging during use.

[0028] The upper surface of the reactor body 201 is connected with a feed pipe 205 and an exhaust pipe 206, the outer surface of the reactor body 201 is fixedly connected with a storage box 207, the exhaust pipe 206 is connected with the storage box 207, the upper surface of the storage box 207 is connected with a connecting pipe 208, the outer surface of the connecting pipe 208 is installed with a control valve, the outer surface of the reactor body 201 is connected with an air inlet pipe 209, the connecting pipe 208 is connected with the air inlet pipe 209, and the outer surface of the air inlet pipe 209 is installed with a one-way valve.

[0029] Liquid paraffin can enter the interior of the reactor body 201 through the feed pipe 205, and chlorine can enter the interior of the reactor body 201 through the air inlet pipe 209. The one-way flow of chlorine is achieved through the one-way valve installed on the air inlet pipe 209 to prevent backflow. The tail gas generated during the reaction of liquid paraffin and chlorine enters the storage box 207 through the exhaust pipe 206 for storage, and the tail gas is cooled by the saturated salt water contained in the storage box 207, and the hydrogen chloride contained therein is adsorbed, thereby reducing the amount of tail gas.

[0030] The cooled chlorine gas can be transported to the air inlet pipe 209 by opening the control valve on the connecting pipe 208, and then enter the reactor body 201 to react again with the liquid paraffin added therein, thereby effectively removing the chlorine component in the tail gas and reducing the tail gas emission and chlorine consumption.

[0031] An exhaust gas treatment device may be provided on the back of the storage box 207 to purify the exhaust gas after multiple cycles so as to meet external emission standards. The exhaust gas treatment device may be manufactured with reference to the existing technology and may be implemented by technicians in this field, so it will not be elaborated here.

[0032] A pump body 5 is installed on the outer surface of the reactor body 201. The input end of the pump body 5 is connected to a liquid inlet pipe 6, which is connected to the reactor body 201. The output end of the pump body 5 is connected to a liquid outlet pipe 7, which is connected to the reactor body 201. Starting the pump body 5 can generate sufficient suction to transport the liquid paraffin at the bottom of the internal space of the reactor body 201 through the liquid inlet pipe 6, the pump body 5 and the liquid outlet pipe 7 in sequence until it is transported to the top position in the internal space of the reactor body 201, so that the liquid paraffin and chlorine are mixed more fully and thoroughly and the reaction is complete.

[0033] The bottom surface of the reactor body 201 is connected with a discharge pipe 4 , and a control valve is installed on the outer surface of the discharge pipe 4 . The prepared chlorinated paraffin can be discharged from the reactor body 201 by opening the control valve on the discharge pipe 4 .

[0034] Example 2

[0035] like Figure 1 to Figure 4As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a control panel 8 is fixedly connected to the outer surface of the reactor body 201, the servo motor 202 is electrically connected to the control panel 8, and the pump body 5 is electrically connected to the control panel 8. The control panel 8 can be used to conveniently and uniformly control the electrical components in the circulating chlorinated paraffin reactor, thereby improving the convenience during use. The specific installation position of the control panel 8 is selected according to actual use requirements, so as to facilitate the operator to perform operation and control.

[0036] Four sleeves 9 are fixedly connected to the outer surface of the rotating rod 203, and the inner wall of each sleeve 9 is slidably connected to a sliding rod 10. The inner wall of the reactor body 201 is slidably connected to two scrapers 11, and the sliding rod 10 is fixedly connected to the scrapers 11. The rotating rod 203 provides fixed support for the sleeve 9, and the sliding rod 10 can slide in the inner wall of the sleeve 9. The sliding rod 10 provides fixed support for the scrapers 11, and the scrapers 11 fit the inner wall of the reactor body 201.

[0037] The inner wall of each sleeve 9 is fixedly connected with a return spring 12, and the return spring 12 is fixedly connected to the slide bar 10. In the utility model, the return spring 12 is in a compressed state. Under the resetting action of the return spring 12, the return spring 12 tends to expand outward, thereby driving the scraper 11 to fit closely with the inner wall of the reactor body 201 through the slide bar 10, and when the rotating rod 203 rotates, the scraper 11 can be driven to rotate to scrape off the liquid paraffin remaining on the inner wall of the reactor body 201, thereby facilitating subsequent cleaning.

[0038] A nameplate 13 is fixedly connected to the outer surface of the reactor body 201. The nameplate 13 can record the manufacturer of the circulating chlorinated paraffin reactor and some technical data under rated working conditions for correct use without damage.

[0039] The components in the drawings of the present invention are only for style reference and are not used as specific size standards. The specific sizes are determined according to the actual requirements of production.

[0040] Working principle: When the circulating chlorinated paraffin reactor is used to prepare chlorinated paraffin, liquid paraffin enters the reactor body 201 through the feed pipe 205, and chlorine enters the reactor body 201 through the air inlet pipe 209. The one-way flow of chlorine is achieved through the one-way valve installed on the air inlet pipe 209 to prevent backflow, so that the chlorine reacts with the liquid paraffin. Then, the servo motor 202 is controlled to start. After the servo motor 202 is started, it can drive the rotating rod 203 to rotate inside the reactor body 201, and then drive a number of stirring rods 204 to rotate, so as to achieve stirring and mixing of chlorine and liquid paraffin, increase the reaction area of ​​​​the liquid paraffin and chlorine, and make the liquid The liquid paraffin reacts completely with the chlorine, and the tail gas generated during the reaction enters the storage box 207 through the exhaust pipe 206 for storage, and the tail gas is cooled by the saturated salt water contained in the storage box 207, and the hydrogen chloride contained therein is adsorbed, and a small amount of chlorine is adsorbed at the same time, thereby reducing the amount of tail gas. The cooled chlorine can be transported to the air inlet pipe 209 by opening the control valve on the connecting pipe 208, and then enters the reactor body 201 to react again with the liquid paraffin added therein, effectively removing the chlorine component in the tail gas, reducing the tail gas emission and the consumption of chlorine, thereby avoiding the waste of chlorine, and further achieving the purpose of reducing costs.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circulating chlorinated paraffin reactor, characterized in that: The invention comprises a bottom plate (1), a circulation mechanism (2) is arranged above the bottom plate (1), the circulation mechanism (2) comprises a reactor body (201) fixedly connected to the bottom plate (1), a servo motor (202) is mounted on the upper surface of the reactor body (201), a rotating rod (203) is fixedly connected to the output shaft end of the servo motor (202), the rotating rod (203) is rotatably connected to the reactor body (201), and a plurality of stirring rods (204) arranged at equal distances are fixedly connected to the outer surface of the rotating rod (203); The upper surface of the reactor body (201) is connected to a feed pipe (205) and an exhaust pipe (206); the outer surface of the reactor body (201) is fixedly connected to a storage box (207); the exhaust pipe (206) is connected to the storage box (207); the upper surface of the storage box (207) is connected to a connecting pipe (208); a control valve is installed on the outer surface of the connecting pipe (208); the outer surface of the reactor body (201) is connected to an air intake pipe (209); the connecting pipe (208) is connected to the air intake pipe (209); a one-way valve is installed on the outer surface of the air intake pipe (209).

2. A circulating chlorinated paraffin reactor according to claim 1, characterized in that: A bearing (3) is inlaid on the inner wall of the reactor body (201), and the inner ring of the bearing (3) is fixedly connected to the outer surface of the rotating rod (203).

3. A circulating chlorinated paraffin reactor according to claim 1, characterized in that: The bottom surface of the reactor body (201) is connected to a discharge pipe (4), and a control valve is installed on the outer surface of the discharge pipe (4).

4. A circulating chlorinated paraffin reactor according to claim 1, characterized in that: A pump body (5) is installed on the outer surface of the reactor body (201); the input end of the pump body (5) is connected to a liquid inlet pipe (6), the liquid inlet pipe (6) is connected to the reactor body (201); the output end of the pump body (5) is connected to a liquid outlet pipe (7), the liquid outlet pipe (7) is connected to the reactor body (201).

5. A circulating chlorinated paraffin reactor according to claim 4, characterized in that: A control panel (8) is fixedly connected to the outer surface of the reactor body (201), the servo motor (202) is electrically connected to the control panel (8), and the pump body (5) is electrically connected to the control panel (8).

6. A circulating chlorinated paraffin reactor according to claim 1, characterized in that: Four sleeves (9) are fixedly connected to the outer surface of the rotating rod (203), and a sliding rod (10) is slidably connected to the inner wall of each sleeve (9). Two scrapers (11) are slidably connected to the inner wall of the reactor body (201), and the sliding rod (10) is fixedly connected to the scraper (11).

7. A circulating chlorinated paraffin reactor according to claim 6, characterized in that: A return spring (12) is fixedly connected to the inner wall of each sleeve (9), and the return spring (12) is fixedly connected to the slide rod (10).

8. A circulating chlorinated paraffin reactor according to claim 1, characterized in that: A nameplate (13) is fixedly connected to the outer surface of the reactor body (201).

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