Chlorinated paraffin low-temperature catalytic reaction kettle

Abstract

The utility model relates to the technical field of reaction kettles, and provides a chlorinated paraffin low-temperature catalytic reaction kettle which comprises a bottom plate, and a cooling mechanism is arranged above the bottom plate. By arranging the cooling mechanism, when the reaction kettle is used for preparing chlorinated paraffin, liquid paraffin and chlorine entering the inner-layer space of the reaction kettle main body can be stirred by utilizing a rotating stirring rod, so that the reaction efficiency of the liquid paraffin and the chlorine is improved, and cooling liquid in a condenser pipe is refrigerated and circularly flows by utilizing a condenser and a water pump; therefore, heat generated during the reaction of liquid paraffin and chlorine in the inner space of the reaction kettle main body is exchanged, and the processing quality of a product is further improved. According to the technical scheme, the problems that in the prior art, due to the fact that chlorination of liquid paraffin is a strong exothermic reaction, a large amount of heat is released in the chlorinated paraffin preparation process, however, the chlorinated paraffin has the phenomenon that the color is deepened due to material decomposition caused by high temperature, and the processing quality of products is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, and in particular to a chlorinated paraffin low-temperature catalytic reaction kettle. 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 CN216024897U is named: A chlorinated paraffin reaction kettle. The patent uses a circulating pump to send part of the material into the kettle from the circulating material inlet, and uses the negative pressure generated by the negative pressure port of the ejector to send part of the tail gas in the tail gas exhaust pipe back into the kettle for reaction, so that part of the chlorine in the tail gas re-enters the kettle for reaction, thereby reducing the chlorine content in the tail gas;

[0004] In the prior art, the utility model with the authorization announcement number CN210875309U is named as a reactor for preparing chlorinated paraffin. The patent puts thionyl chloride solution into a liquid storage tank, seals the liquid storage tank through a sealing plate, drives the adjusting shaft and the driving gear to rotate through a reduction motor, drives the two sets of driven gears to rotate a specific angle, and the two sets of driven gears respectively drive the two sets of threaded pipes to rotate a specific angle. Through the cooperation of the threaded pipe and the threaded rod, the sealing plate moves downward by a certain distance, so that a quantitative amount of thionyl chloride solution in the liquid storage tank is introduced into the working chamber through the infusion tube, the first cavity and the second cavity from the micro-hole, and the quantitative amount of thionyl chloride solution is led out into the working chamber through the multiple sets of micro-holes on the transverse stirring rod, so that the thionyl chloride can be quickly diffused into the liquid paraffin solution. With the rotation of the transverse stirring rod, the thionyl chloride and the paraffin solution are quickly merged, which promotes the reaction, avoids the waste of chlorine, improves the efficiency of the reaction between liquid paraffin and chlorine, and improves the reliability of use.

[0005] Both of the above-mentioned patents can realize the production of chlorinated paraffin. However, since the chlorination of liquid paraffin is a highly exothermic reaction, a large amount of heat will be released during the preparation of chlorinated paraffin. However, the chlorinated paraffin will decompose due to high temperature and its color will darken, which will reduce the processing quality of the product. Therefore, we propose a low-temperature catalytic reactor for chlorinated paraffin. Utility Model Content

[0006] The utility model provides a chlorinated paraffin low-temperature catalytic reaction kettle, which solves the problem in the related art that the chlorination of liquid paraffin is a strong exothermic reaction, so that a large amount of heat is released in the process of preparing the chlorinated paraffin, but the chlorinated paraffin will decompose the material due to the high temperature and the color will deepen, thereby reducing the processing quality of the product.

[0007] The technical scheme of the utility model is as follows: a chlorinated paraffin low-temperature catalytic reactor, comprising a bottom plate, a cooling mechanism is arranged above the bottom plate, the cooling mechanism comprises a reactor body and two support blocks, the two support blocks are fixedly connected to the bottom plate, the two support blocks are fixedly connected to the reactor body, a servo motor is fixedly connected to one side of the reactor body, the output shaft end of the servo motor is fixedly connected to a rotating rod rotatably connected to the reactor body, the outer surface of the rotating rod is fixedly connected to a plurality of stirring rods arranged at equal distances, the inner wall of the reactor body is connected to a feed pipe and an air inlet pipe, a water pump and a condenser are installed on the outer surface of the reactor body, the water pump is connected to the condenser, the output end of the water pump is connected to a condenser, the condenser is fixedly connected to the reactor body, and the condenser is connected to the condenser.

[0008] Preferably, the inner wall 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 user can open the control valve on the discharge pipe to discharge the prepared chlorinated paraffin from the reactor body.

[0009] Preferably, the inner wall of the reactor body is connected to an exhaust pipe, a control valve is installed on the outer surface of the exhaust pipe, and a purification treatment box is fixedly connected to the upper surface of the bottom plate. When a user opens the control valve on the exhaust pipe, the tail gas generated during the preparation of chlorinated paraffin can enter the purification treatment box through the exhaust pipe, and the residual chlorine in the tail gas can be absorbed by the strong alkaline solution added in the purification treatment box, thereby preventing the chlorine from being directly discharged into the air and polluting the air environment.

[0010] Preferably, the outer surface of the reactor body is fixedly connected to a control panel, the servo motor is electrically connected to the control panel, the water pump is electrically connected to the control panel, and the condenser is electrically connected to the control panel. The control panel can be used to conveniently and uniformly control the electrical components in the chlorinated paraffin low-temperature catalytic reactor, thereby improving convenience during use. The specific installation position of the control panel is selected according to actual use requirements to facilitate user operation and control.

[0011] Preferably, a temperature sensor is installed on the outer surface of the reactor body, and the temperature sensor is electrically connected to the control panel. The temperature sensor can detect the heat of cooling water in the outer space of the reactor body, and transmit the detection data to the control panel, so as to better control the start and stop of the water pump and the condenser.

[0012] Preferably, the outer surface of the servo motor is fixedly connected with four sleeves, the inner walls of the four sleeves are slidably connected with support rods, the inner walls of the four sleeves are fixedly connected with return springs, the four return springs are respectively fixedly connected to four support rods, the servo motor fixedly supports the sleeve, and the support rod can slide in the inner wall of the sleeve. 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 support rod to slide outward along the inner wall of the sleeve.

[0013] Preferably, two symmetrical cleaning blocks are slidably connected to the inner wall of the reactor body, and the support rod is fixedly connected to the cleaning blocks. The support rod moves outward to make the cleaning blocks fit tightly against the inner wall of the reactor body, so that when the servo motor rotates, the cleaning blocks can be driven to rotate to scrape off the liquid paraffin remaining on the inner wall of the inner space of the reactor body, thereby facilitating subsequent cleaning.

[0014] Preferably, the inner wall of the reactor body is inlaid with two bearings, and the inner walls of the two bearings are fixedly connected to the outer surface of the rotating rod. The bearings can make the rotating rod more stable during rotation, and at the same time reduce the resistance of the rotating rod during rotation, thereby avoiding jamming and swinging of the rotating rod during use.

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

[0016] 1. In the utility model, through the coordinated arrangement between the bottom plate and the cooling mechanism, when the reactor is used to prepare chlorinated paraffin under low temperature conditions, liquid paraffin enters the reactor body through the feed pipe, and chlorine enters the reactor body through the air inlet pipe, and then the liquid paraffin and chlorine are stirred by the stirring rod in a rotating state, so as to improve the reaction efficiency of both, and the coolant inside the condenser tube is refrigerated by the condenser, and the coolant inside the condenser tube is driven to circulate by the water pump, so that the condenser tube can cool the water poured into the outer space of the reactor body, so as to achieve heat exchange of the heat generated by the reaction of liquid paraffin and chlorine in the inner space of the reactor body, so as to avoid the decomposition of the chlorinated paraffin due to the heat generated by the reaction, which causes the decomposition color of the chlorinated paraffin to deepen, thereby improving the processing quality of the product. 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 It is a front view schematic diagram of the three-dimensional structure of the utility model;

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

[0020] Figure 3 The local structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 4 The local structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 5 It is a schematic diagram of the internal structure of the sleeve of the utility model.

[0023] In the figure: 1. bottom plate; 2. cooling mechanism; 201. support block; 202. reactor body; 203. servo motor; 204. rotating rod; 205. stirring rod; 206. feeding pipe; 207. air inlet pipe; 208. water pump; 209. condenser; 2010. condenser; 3. discharge pipe; 4. exhaust pipe; 5. purification treatment box; 6. control panel; 7. temperature sensor; 8. sleeve; 9. support rod; 10. cleaning block; 11. reset spring; 12. bearing. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1

[0026] like Figure 1 to Figure 4 As shown, this embodiment proposes a chlorinated paraffin low-temperature catalytic reactor, including a bottom plate 1, a cooling mechanism 2 is arranged above the bottom plate 1, the cooling mechanism 2 includes a reactor body 202 and two support blocks 201, the two support blocks 201 are fixedly connected to the bottom plate 1, and the two support blocks 201 are fixedly connected to the reactor body 202.

[0027] The bottom plate 1 provides fixed support for the two support blocks 201, and the two support blocks 201 jointly provide fixed support for the reactor body 202. The two support blocks 201 are symmetrically arranged with the mid-vertical line of the reactor body 202 as the symmetry axis, thereby achieving stable support for the reactor body 202. The reactor body 202 is divided into two spaces, and the outer space is filled with cooling water for heat exchange in the inner space of the reactor body 202.

[0028] The inner wall of the reactor body 202 is connected with a feed pipe 206 and an air inlet pipe 207. Figure 1It can be seen that liquid paraffin can enter the interior of the reactor body 202 through the feed pipe 206, and chlorine can enter the reactor body 202 through the air inlet pipe 207. A one-way valve is installed on the outer surface of the air inlet pipe 207 to achieve one-way flow of chlorine and prevent backflow.

[0029] A servo motor 203 is fixedly connected to one side of the reactor body 202 , and a rotating rod 204 rotatably connected to the reactor body 202 is fixedly connected to the output shaft end of the servo motor 203 . A plurality of stirring rods 205 arranged at equal distances are fixedly connected to the outer surface of the rotating rod 204 .

[0030] The reactor body 202 provides fixed support for the servo motor 203. After the servo motor 203 is connected to the municipal power supply and started, it can drive the rotating rod 204 to rotate inside the reactor body 202. The rotating rod 204 drives several stirring rods 205 thereon to rotate, so as to stir and mix the liquid paraffin and chlorine gas added into the reactor body 202, increase the reaction area of ​​the liquid paraffin and the chlorine gas, and make the liquid paraffin and the chlorine gas react completely.

[0031] Two bearings 12 are embedded in the inner wall of the reactor body 202, and the inner walls of the two bearings 12 are fixedly connected to the outer surface of the rotating rod 204. The bearings 12 can make the rotating rod 204 more stable when rotating, and at the same time reduce the resistance of the rotating rod 204 during rotation, avoiding the rotating rod 204 from getting stuck and swinging during use.

[0032] A water pump 208 and a condenser 209 are installed on the outer surface of the reactor body 202. The water pump 208 is connected to the condenser 209. The output end of the water pump 208 is connected to a condenser pipe 2010. The condenser pipe 2010 is fixedly connected to the reactor body 202 and is connected to the condenser 209.

[0033] The water pump 208 and the condenser 209 are connected to the municipal power supply, and the coolant flowing in the condenser tube 2010 can be cooled through the condenser 209. Then, the water pump 208 is used to drive the coolant to circulate in the condenser tube 2010, and then the cooling water in the outer space of the reactor body 202 is cooled, so as to perform heat exchange on the heat generated by the reaction of liquid paraffin and chlorine in the inner space of the reactor body 202.

[0034] The inner wall of the reactor body 202 is connected with a discharge pipe 3 , and a control valve is installed on the outer surface of the discharge pipe 3 . The user can open the control valve on the discharge pipe 3 to discharge the prepared chlorinated paraffin from the reactor body 202 .

[0035] The inner wall of the reactor body 202 is connected to an exhaust pipe 4, and a control valve is installed on the outer surface of the exhaust pipe 4. The upper surface of the bottom plate 1 is fixedly connected to a purification treatment box 5. When the user opens the control valve on the exhaust pipe 4, the exhaust gas generated during the preparation of chlorinated paraffin can enter the purification treatment box 5 through the exhaust pipe 4, and the residual chlorine in the exhaust gas is absorbed by the strong alkaline solution added in the purification treatment box 5, thereby preventing the chlorine from being directly discharged into the air and polluting the air environment.

[0036] Example 2

[0037] like Figure 1 to Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the outer surface of the reactor body 202 is fixedly connected to the control panel 6, the servo motor 203 is electrically connected to the control panel 6, the water pump 208 is electrically connected to the control panel 6, and the condenser 209 is electrically connected to the control panel 6. The control panel 6 can be used to conveniently and uniformly control the electrical components in the chlorinated paraffin low-temperature catalytic reactor, thereby improving the convenience during use. The specific installation position of the control panel 6 is selected according to actual use requirements, so as to facilitate the user to operate and control.

[0038] A temperature sensor 7 is installed on the outer surface of the reactor body 202, and the temperature sensor 7 is electrically connected to the control panel 6. The temperature sensor 7 can detect the heat of the cooling water in the outer space of the reactor body 202, and transmit the detection data to the control panel 6, so as to better control the start and stop of the water pump 208 and the condenser 209.

[0039] The outer surface of the servo motor 203 is fixedly connected with four sleeves 8, the inner walls of the four sleeves 8 are slidably connected with support rods 9, the inner walls of the four sleeves 8 are fixedly connected with return springs 11, the four return springs 11 are respectively fixedly connected to the four support rods 9, the servo motor 203 fixedly supports the sleeve 8, and the support rod 9 can slide in the inner wall of the sleeve 8. In the utility model, the return spring 11 is in a compressed state. Under the resetting action of the return spring 11, the return spring 11 tends to expand outward, thereby driving the support rod 9 to slide outward along the inner wall of the sleeve 8.

[0040] Two symmetrical cleaning blocks 10 are slidably connected to the inner wall of the reactor body 202, and the support rod 9 is fixedly connected to the cleaning block 10. The support rod 9 moves outward, so that the cleaning block 10 can fit tightly against the inner wall of the reactor body 202, so that when the servo motor 203 rotates, the cleaning block 10 can be driven to rotate to scrape off the liquid paraffin remaining on the inner wall of the inner space of the reactor body 202, thereby facilitating subsequent cleaning.

[0041] The servo motor 203, water pump 208, condenser 209, control panel 6 and temperature sensor 7 in the utility model are all conventional equipment purchased on the market and known to technicians in this field. The models can be selected or customized according to actual needs. They are only used in this patent without improving their structure and function. For technicians in this field, their setting method, installation method and electrical connection method only need to be debugged according to the requirements of their instruction manual, and they will not be described in detail here.

[0042] 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.

[0043] Working principle: When chlorinated paraffin is prepared by using a chlorinated paraffin low-temperature catalytic reactor, liquid paraffin enters the reactor body 202 through a feed pipe 206, and chlorine enters the reactor body 202 through an air inlet pipe 207. Then, the servo motor 203 is controlled to start, which can drive the rotating rod 204 to rotate in the inner wall of the reactor body 202. The rotating rod 204 drives the stirring rod 205 to stir the liquid paraffin and the chlorine, thereby improving the reaction efficiency of the liquid paraffin and the chlorine. At the same time, the water pump 208 and the condenser 209 can be controlled to start. After the condenser 209 is started, it can cool the coolant inside the condenser tube 2010. After the water pump 208 is started, it can drive the coolant inside the condenser tube 2010 to circulate, so that the condenser tube 2010 can cool the water poured into the outer space of the reactor body 202, thereby achieving heat exchange with the heat generated by the reaction of liquid paraffin and chlorine gas in the inner space of the reactor body 202, avoiding the decomposition of the chlorinated paraffin due to the heat generated by the reaction, which causes the decomposition color of the chlorinated paraffin to deepen, thereby improving the processing quality of the product.

[0044] 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 chlorinated paraffin low temperature catalytic reactor, characterized in that: The invention comprises a bottom plate (1), a cooling mechanism (2) being arranged above the bottom plate (1), the cooling mechanism (2) comprising a reactor body (202) and two support blocks (201), the two support blocks (201) being fixedly connected to the bottom plate (1), the two support blocks (201) being fixedly connected to the reactor body (202), a servo motor (203) being fixedly connected to one side of the reactor body (202), and a rotating rod (204) being rotatably connected to the reactor body (202) being fixedly connected to the output shaft end of the servo motor (203); The outer surface of the rotating rod (204) is fixedly connected to a plurality of stirring rods (205) arranged at equal distances from each other; the inner wall of the reactor body (202) is connected to a feed pipe (206) and an air inlet pipe (207); a water pump (208) and a condenser (209) are installed on the outer surface of the reactor body (202); the water pump (208) is connected to the condenser (209); the output end of the water pump (208) is connected to a condenser (2010); the condenser (2010) is fixedly connected to the reactor body (202); and the condenser (2010) is connected to the condenser (209).

2. A chlorinated paraffin low temperature catalytic reactor according to claim 1, characterized in that: The inner wall of the reactor body (202) is connected to a discharge pipe (3), and a control valve is installed on the outer surface of the discharge pipe (3).

3. A chlorinated paraffin low temperature catalytic reactor according to claim 1, characterized in that: The inner wall of the reactor body (202) is connected to an exhaust pipe (4), a control valve is installed on the outer surface of the exhaust pipe (4), and a purification treatment box (5) is fixedly connected to the upper surface of the bottom plate (1).

4. A chlorinated paraffin low temperature catalytic reactor according to claim 1, characterized in that: The outer surface of the reactor body (202) is fixedly connected to the control panel (6), the servo motor (203) is electrically connected to the control panel (6), the water pump (208) is electrically connected to the control panel (6), and the condenser (209) is electrically connected to the control panel (6).

5. A chlorinated paraffin low temperature catalytic reactor according to claim 4, characterized in that: A temperature sensor (7) is installed on the outer surface of the reactor body (202), and the temperature sensor (7) is electrically connected to the control panel (6).

6. A chlorinated paraffin low temperature catalytic reactor according to claim 1, characterized in that: Four sleeves (8) are fixedly connected to the outer surface of the servo motor (203), the inner walls of the four sleeves (8) are slidably connected to support rods (9), the inner walls of the four sleeves (8) are fixedly connected to return springs (11), and the four return springs (11) are fixedly connected to the four support rods (9), respectively.

7. A chlorinated paraffin low temperature catalytic reactor according to claim 6, characterized in that: Two symmetrical cleaning blocks (10) are slidably connected to the inner wall of the reactor body (202), and the support rod (9) is fixedly connected to the cleaning blocks (10).

8. A chlorinated paraffin low temperature catalytic reactor according to claim 1, characterized in that: Two bearings (12) are inlaid on the inner wall of the reactor body (202), and the inner walls of the two bearings (12) are fixedly connected to the outer surface of the rotating rod (204).

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