Continuous production system of bis(trichloromethyl) carbonate

Abstract

The present invention discloses a continuous production system of di(trichloromethyl) carbonate, the system comprising: a feeding component; a continuous chlorination component, the continuous chlorination component receiving the solid and liquid raw materials fed by the feeding component; a waste gas treatment circulation component, the waste gas treatment circulation component being connected to the waste gas discharge end of the continuous chlorination component; the waste gas treatment circulation component comprising a gas collecting tank and a rotating discharge mechanism, the top of the gas collecting tank is respectively provided with an exhaust pipe and an air intake pipe, the rotating discharge mechanism comprising a gas storage cylinder, a rotating rod and a connecting sleeve ring. The present invention replaces the existing absorption treatment equipment in the entire continuous production system, and uses the waste gas treatment circulation component to treat the tail gas, so that the hydrogen chloride gas is reduced and replaced by the component, and the chlorine obtained in this way can be used as the chlorine raw material for the subsequent production process, so that the loss of the chlorine raw material can be saved, making the entire continuous production more environmentally friendly and economical.

Description

Technical Field

[0001] The invention relates to the field of chemical production, and in particular to a continuous production system of bis(trichloromethyl) carbonate. Background Art

[0002] Bis(trichloromethyl) carbonate is a white crystal, which decomposes when exposed to hot water and alkali hydroxide, with a relative density of about 2, a boiling point of 205-206°C (partial decomposition), and a melting point of 78-79°C. It is soluble in ethanol, benzene and ether, but insoluble in water. It can replace phosgene or diphosgene in reactions in medicine, pesticides, organic chemicals and polymer synthesis.

[0003] The existing industrial preparation of bis(trichloromethyl) carbonate is prepared by multi-stage chlorination of dimethyl carbonate and chlorine, and the finished product of bis(trichloromethyl) carbonate can be obtained through continuous production and preparation. In the chlorination process of the preparation of bis(trichloromethyl) carbonate, the chlorination reaction of chlorine and dimethyl carbonate will produce hydrogen chloride gas. In the existing industrial treatment, the hydrogen chloride gas produced in the production will be absorbed and treated by absorption treatment equipment. Although such a treatment process solves the pollution problem, it causes waste of hydrogen chloride gas. Since hydrogen chloride gas can replace chlorine through a replacement reaction, the tail gas treatment method of directly absorbing and treating hydrogen chloride gas will cause waste of transportation materials. Summary of the invention

[0004] The object of the present invention is to provide a continuous production system of bis(trichloromethyl)carbonate to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a continuous production system of bis(trichloromethyl) carbonate, the system comprising:

[0006] A feeding component, which is used to feed solid and liquid raw materials;

[0007] A continuous chlorination component, which receives the solid and liquid raw materials fed by the feeding component, and then introduces chlorine gas to perform continuous chlorination treatment;

[0008] A waste gas treatment circulation component, wherein the waste gas treatment circulation component is connected to the waste gas discharge end of the continuous chlorination component, and then the chlorine gas obtained by the treatment is fed into the continuous chlorination component for chlorination operation;

[0009] The exhaust gas treatment circulation component comprises an air collecting tank and a rotating discharge mechanism. The top of the air collecting tank is respectively provided with an exhaust pipe and an air intake pipe. The rotating discharge mechanism comprises an air storage cylinder, a rotating rod and a connecting ring.

[0010] Preferably, the feeding assembly comprises a feeding machine body, a feeding hopper is arranged at the top of the feeding machine body, and a conveying pipe is fixedly connected to the discharge end at the bottom of the feeding machine body.

[0011] Preferably, the continuous chlorination assembly comprises a first ceramic tower reactor, a second ceramic tower reactor, a third ceramic tower reactor and a fourth ceramic tower reactor, and the discharge ends and feed ends of the first ceramic tower reactor, the second ceramic tower reactor, the third ceramic tower reactor and the fourth ceramic tower reactor are fixedly connected in sequence through a conveying pipe.

[0012] Preferably, the tops of the first ceramic tower reactor, the second ceramic tower reactor, the third ceramic tower reactor and the fourth ceramic tower reactor are all provided with exhaust gas discharge ends, and the sides of the bottoms of the first ceramic tower reactor, the second ceramic tower reactor, the third ceramic tower reactor and the fourth ceramic tower reactor are all provided with air inlet ends.

[0013] Preferably, the air inlet ends of the first ceramic tower reactor, the second ceramic tower reactor, the third ceramic tower reactor and the fourth ceramic tower reactor are connected to an air pump via a delivery pipe, and the waste gas discharge ends of the first ceramic tower reactor, the second ceramic tower reactor, the third ceramic tower reactor and the fourth ceramic tower reactor are fixedly connected via a delivery pipe and an air inlet pipe.

[0014] Preferably, the air inlet end of the inflation pump is fixedly connected to a chlorine tank via a delivery pipe, the first gas filling end and the exhaust pipe of the chlorine tank are fixedly connected via a delivery pipe, a second gas filling end is provided on the outer wall of the chlorine tank, and a control valve is provided in the middle of each of the plurality of delivery pipes.

[0015] Preferably, exhaust holes and air inlet holes are respectively provided on both sides of the top of the gas collecting tank, and the exhaust pipe and the air inlet pipe are respectively inserted in the exhaust hole and the air inlet hole, one end of the air inlet pipe is located inside the gas collecting tank and is fixedly connected to an air guide pipe, a limiting ring is fixedly connected to the middle of the inner wall of the gas collecting tank, and the limiting ring is sleeved on the outer wall of the air guide pipe, a support block is provided on the inner wall of the bottom end of the gas collecting tank, a support groove is provided on the top of the support block, and a limiting groove is provided on the inner wall in the middle of the support groove.

[0016] Preferably, a support collar is provided at the bottom of the gas collecting tank, a plurality of support legs are fixedly connected to the sides of the bottom end of the support collar, a placement plate is fixedly connected to the inner wall of the top of the gas collecting tank, a rotating motor is provided on the order of the placement plate, and the output end of the rotating motor passes through the middle of the placement plate and is fixedly connected to the top of the rotating rod;

[0017] The bottom of the rotating rod is rotatably inserted and connected in the supporting groove, the bottom of the rotating rod is sleeved with a blocking ring, and the blocking ring is rotatably inserted and connected in the limiting groove, the top and bottom of the rotating rod are sleeved with two rotating blocks, and the four rotating blocks are fixedly connected with sealing blocks on one side opposite to each other.

[0018] Preferably, the top and bottom ends of the air storage cylinder are provided with insertion holes, the outer wall of the air storage cylinder is provided with a plurality of leakage holes, the bottom of the air storage cylinder is provided with an annular connecting port, and the connecting ring is rotatably inserted in the annular connecting port.

[0019] Preferably, the outer walls of the top and bottom ends of the annular connecting port are provided with connecting ring grooves, the sides of the top and bottom ends of the connecting ring are fixedly connected with connecting swivels, the two connecting swivels are respectively rotatably inserted and connected in the two connecting ring grooves, the top and bottom ends of the connecting ring are provided with multiple embedding grooves, and balls are provided in the multiple embedding grooves, and the outer wall of the connecting ring is provided with a connecting hole, and the connecting hole is inserted and connected with one end of the air guide tube.

[0020] Technical effects and advantages of the present invention:

[0021] (1) The present invention replaces the existing absorption treatment equipment in the entire continuous production system and uses the waste gas treatment circulation component to treat the tail gas. In this way, the hydrogen chloride gas is reduced and replaced by the component, and the chlorine gas obtained can be used as the chlorine raw material for the subsequent production process, which can save the loss of chlorine raw materials and make the entire continuous production more environmentally friendly and economical;

[0022] (2) The waste gas treatment component of the present invention is composed of a gas collecting tank and a rotating discharge mechanism, and the waste gas discharge end of hydrogen chloride is connected to the rotating discharge mechanism. In this way, when treating hydrogen chloride gas, the rotation of the gas storage cylinder can not only stir the replacement fluid to increase the contact area between the hydrogen chloride gas and the replacement fluid, but also the rotation of the gas storage cylinder can change the exhaust direction of the hydrogen chloride gas, so that the contact range is wider, so that the replacement speed can be accelerated, the replacement quality can be improved, and the replacement fluid can be fully utilized, so that the replacement use of the replacement fluid is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall connection of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure of the waste gas treatment circulation component of the present invention.

[0025] Figure 3 It is a structural cross-sectional view of the exhaust gas treatment circulation component of the present invention.

[0026] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A in the middle.

[0027] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0028] Figure 6 It is a schematic diagram of the structural connection of the air storage cylinder and the connecting ring of the present invention.

[0029] Figure 7 It is a structural schematic diagram of the connecting ring of the present invention.

[0030] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at C in the middle.

[0031] In the figure: 1. feeder body; 2. first ceramic tower reactor; 3. second ceramic tower reactor; 4. third ceramic tower reactor; 5. fourth ceramic tower reactor; 6. control valve; 7. air pump; 8. chlorine tank; 9. gas collecting tank; 901. exhaust pipe; 902. air inlet pipe; 903. air guide pipe; 904. limiting ring; 905. support block; 10. support collar; 1001. support leg; 11. placement plate; 12. rotating motor; 1201. rotating rod; 1202. blocking collar; 13. air storage cylinder; 1301. air leakage hole; 14. connecting collar; 1401. connecting hole; 1402. connecting swivel; 1403. ball; 15. rotating block; 1501. sealing block. DETAILED DESCRIPTION

[0032] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0033] The present invention provides Figure 1-8 The bis(trichloromethyl)carbonate continuous production system shown in the figure comprises:

[0034] A feeding component, which is used to feed solid and liquid raw materials;

[0035] The feeding assembly comprises a feeding machine body 1, a feeding hopper is arranged at the top of the feeding machine body 1, and a conveying pipe is fixedly connected to the discharge end at the bottom of the feeding machine body 1;

[0036] The feeder body 1 can perform solid and liquid feeding operations. The raw materials are introduced into the feeder body 1 through the feed hopper, and then the discharge mechanism inside the feeder body 1 discharges the raw materials intermittently according to the set proportion or quality. In this way, by pre-setting the feeding amount within a period of time before production, the raw materials in the entire production process can obtain the best replacement reaction amount, making the final product more refined.

[0037] A continuous chlorination component receives solid and liquid raw materials fed by the feeding component, and then introduces chlorine gas for continuous chlorination treatment;

[0038] The continuous chlorination assembly comprises a first ceramic tower reactor 2, a second ceramic tower reactor 3, a third ceramic tower reactor 4 and a fourth ceramic tower reactor 5, wherein the discharge end and the feed end of the first ceramic tower reactor 2, the second ceramic tower reactor 3, the third ceramic tower reactor 4 and the fourth ceramic tower reactor 5 are fixedly connected in sequence through a conveying pipe;

[0039] The ceramic tower reactor is a reactor widely used in medium-speed, slow reactions and reactions with high heat release in which the liquid phase also participates in the reaction. It is insulated by a ceramic shell. Since ultraviolet irradiation is required to accelerate the chlorination reaction in this production process and the temperature in the reactor must be maintained during the chlorination reaction, the use of a ceramic tower reactor can better operate.

[0040] The tops of the first ceramic tower reactor 2, the second ceramic tower reactor 3, the third ceramic tower reactor 4 and the fourth ceramic tower reactor 5 are all provided with exhaust gas discharge ends, and one side of the bottoms of the first ceramic tower reactor 2, the second ceramic tower reactor 3, the third ceramic tower reactor 4 and the fourth ceramic tower reactor 5 are all provided with gas inlet ends;

[0041] The air inlet ends of the first ceramic tower reactor 2, the second ceramic tower reactor 3, the third ceramic tower reactor 4 and the fourth ceramic tower reactor 5 are connected to the air pump 7 through a delivery pipe, and the exhaust gas discharge ends of the first ceramic tower reactor 2, the second ceramic tower reactor 3, the third ceramic tower reactor 4 and the fourth ceramic tower reactor 5 are fixedly connected to the air inlet pipe 902 through a delivery pipe;

[0042] The air inlet end of the air pump 7 is fixedly connected to the chlorine tank 8 through a delivery pipe, the first air filling end of the chlorine tank 8 and the exhaust pipe 901 are fixedly connected through the delivery pipe, the outer wall of the chlorine tank 8 is provided with a second air filling end, and the middle of the multiple delivery pipes are provided with a control valve 6;

[0043] The pipelines are sealed and connected to each other, and the pipelines can transport both gas and liquid, which ensures that the raw materials can be sequentially transferred between the reaction towers in a mixed liquid state.

[0044] The waste gas treatment circulation component is connected to the waste gas discharge end of the continuous chlorination component, and then the chlorine gas obtained by the treatment is put into the continuous chlorination component for chlorination operation;

[0045] The exhaust gas treatment circulation assembly includes an air collecting tank 9 and a rotating discharge mechanism. The top of the air collecting tank 9 is provided with an exhaust pipe 901 and an air intake pipe 902. The rotating discharge mechanism includes an air storage cylinder 13, a rotating rod 1201 and a connecting ring 14.

[0046] Exhaust holes and air inlet holes are respectively provided on both sides of the top of the gas collecting tank 9, and the exhaust pipe 901 and the air inlet pipe 902 are respectively inserted in the exhaust hole and the air inlet hole, and one end of the air inlet pipe 902 is fixedly connected with an air guide pipe 903 inside the gas collecting tank 9, and a limiting ring 904 is fixedly connected to the middle of the inner wall of the gas collecting tank 9, and the limiting ring 904 is sleeved on the outer wall of the air guide pipe 903, and a support block 905 is provided on the inner wall of the bottom end of the gas collecting tank 9, and a support groove is provided on the top of the support block 905, and a limiting groove is provided on the inner wall in the middle of the support groove.

[0047] A support collar 10 is sleeved on the bottom of the gas collecting tank 9, and a plurality of support legs 1001 are fixedly connected to the sides of the bottom end of the support collar 10. A placement plate 11 is fixedly connected to the inner wall of the top of the gas collecting tank 9, and a rotating motor 12 is arranged on the order of the placement plate 11. The output end of the rotating motor 12 passes through the middle of the placement plate 11 and is fixedly connected to the top of the rotating rod 1201.

[0048] The bottom of the rotating rod 1201 is rotatably inserted and connected in the supporting groove, and a blocking ring 1202 is sleeved on the bottom of the rotating rod 1201, and the blocking ring 1202 is rotatably inserted and connected in the limiting groove. Two rotating blocks 15 are sleeved on the top and bottom of the rotating rod 1201, and the four rotating blocks 15 are fixedly connected to the opposite sides of each other with sealing blocks 1501;

[0049] The height position of the air cylinder 13 on the wall of the rotating rod 1201 is limited by the rotating block 15 and the sealing block 1501. At the same time, the rotating block 15 is used to drive the air cylinder 13 to rotate synchronously with the rotation of the rotating rod 1201. The sealing block 1501 can seal the connection and increase the friction of the connection, so that the rotating rod 1201 can drive the lower air cylinder 13 to rotate more smoothly.

[0050] The top and bottom of the air storage cylinder 13 are provided with insertion holes, the outer wall of the air storage cylinder 13 is provided with a plurality of air leakage holes 1301, the bottom of the air storage cylinder 13 is provided with an annular connecting opening, and the connecting sleeve 14 is rotatably inserted in the annular connecting opening;

[0051] The outer walls of the top and bottom ends of the annular connection opening are provided with connection ring grooves, the sides of the top and bottom ends of the connection ring 14 are fixedly connected with connection swivels 1402, the two connection swivels 1402 are respectively rotatably inserted and connected in the two connection ring grooves, the top and bottom ends of the connection ring 14 are provided with a plurality of embedding grooves, the plurality of embedding grooves are provided with balls 1403, the outer wall of the connection ring 14 is provided with a connection hole 1401, the connection hole 1401 and one end of the air guide tube 903 are inserted and connected;

[0052] According to the actual needs of gas replacement, a permeable membrane can be set in the leakage hole 1301, so that the replacement fluid is isolated by the permeable membrane, and the replacement fluid is not allowed to flow into the gas storage cylinder 13 through the leakage hole 1301. When the hydrogen chloride gas enters the gas storage cylinder 13 through the connecting hole 1401, the hydrogen chloride gas passes through the permeable membrane and is discharged from the leakage hole 1301, and then the replacement reaction is carried out, so that the direction of replacement and the gas flow rate can be controlled.

[0053] Working principle of the present invention: Figures 1 to 8 When using this system to prepare bis(trichloromethyl) carbonate, the following steps are required:

[0054] The first step of the operation is to open the control valve 6 at the feeder body 1 to ensure that all the conveying pipes are unobstructed, and then dimethyl carbonate is fed into the feeder body 1 from the feed hopper at the top of the feeder body 1. After the speed control treatment of the feeder body 1, the dimethyl carbonate is conveyed to the first ceramic tower reactor 2 through the conveying pipe.

[0055] The second step of operation is to open the control valve 6 where the chlorine tank 8 and the air pump 7 are connected to the continuous chlorination component. At this time, the air pump 7 extracts chlorine from the chlorine tank 8 and then transports it to the first ceramic tower reactor 2 for the first step of chlorination treatment. Thereafter, the chlorinated raw materials are sequentially transported to the second ceramic tower reactor 3, the third ceramic tower reactor 4 and the fourth ceramic tower reactor 5 to complete the four-step chlorination. In this way, the finished di(trichloromethyl) carbonate can be obtained from the fourth ceramic tower reactor 5.

[0056] The third step is to open the control valve 6 of the gas pipe at the gas inlet pipe 902 and the first ceramic tower reactor 2, the second ceramic tower reactor 3, the third ceramic tower reactor 4 and the fourth ceramic tower reactor 5, and add a replacement fluid into the gas collecting tank 9 so that the liquid level of the replacement fluid exceeds the height of the top of the gas storage cylinder 13. At this time, the hydrogen chloride gas generated by chlorination will enter the gas collecting tank 9 through the gas inlet pipe 902, and the hydrogen chloride gas will enter the gas storage cylinder 13 along the connecting hole 1401 through the air guide pipe 903 to perform reduction replacement with the replacement fluid;

[0057] At this time, the rotating motor 12 is powered on and started. The rotating motor 12 drives the connected rotating rod 1201 to rotate through the output end. The rotating rod 1201 then drives the connected rotating block 15 to rotate synchronously. The rotation of the rotating block 15 drives the gas storage cylinder 13 to rotate synchronously. At this time, since the connecting collar 14 is restricted by the air guide tube 903, and the air guide tube 903 is restricted by the limit ring 904, the connecting collar 14 rotates relative to the gas storage cylinder 13. In this way, the connecting rings 1402 and the balls 1403 at the top and bottom of the connecting collar 14 rotate synchronously. The rotation of the gas storage cylinder 13 can not only stir the replacement fluid to increase the contact area between the hydrogen chloride gas and the replacement fluid, but also change the exhaust direction of the hydrogen chloride gas to make the contact range wider. In this way, the replacement speed can be accelerated, the replacement quality can be improved, and the replacement fluid can be fully utilized, so that the replacement and use of the replacement fluid are more uniform.

[0058] The fourth step is to open the control valve 6 between the exhaust pipe 901 and the chlorine tank 8, so that the chlorine obtained by displacement is discharged from the gas collecting tank 9 through the exhaust pipe 901, and is transported to the chlorine tank 8 along the delivery pipe for storage, providing chlorine raw materials for subsequent chlorination operations.

[0059] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. 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 continuous production system of bis(trichloromethyl) carbonate, the system comprising: A feeding component, which is used to feed solid and liquid raw materials; A continuous chlorination component, which receives the solid and liquid raw materials fed by the feeding component, and then introduces chlorine gas to perform continuous chlorination treatment; A waste gas treatment circulation component, wherein the waste gas treatment circulation component is connected to the waste gas discharge end of the continuous chlorination component, and then the chlorine gas obtained by the treatment is fed into the continuous chlorination component for chlorination operation; Characterized in that the exhaust gas treatment circulation assembly comprises an air collecting tank (9) and a rotating discharge mechanism, the top of the air collecting tank (9) is respectively provided with an exhaust pipe (901) and an intake pipe (902), and the rotating discharge mechanism comprises an air storage cylinder (13), a rotating rod (1201) and a connecting collar (14); The top and bottom ends of the gas storage cylinder (13) are both provided with insertion holes, the outer wall of the gas storage cylinder (13) is provided with a plurality of air leakage holes (1301), the bottom of the gas storage cylinder (13) is provided with an annular connecting opening, and the connecting ring (14) is rotatably inserted in the annular connecting opening; The outer walls of the top and bottom ends of the annular connection opening are provided with connection ring grooves, the sides of the top and bottom ends of the connection ring (14) are fixedly connected with connection rotating rings (1402), the two connection rotating rings (1402) are respectively rotatably inserted and connected in the two connection ring grooves, the top and bottom ends of the connection ring (14) are provided with a plurality of embedding grooves, and the plurality of embedding grooves are provided with balls (1403), the outer wall of the connection ring (14) is provided with a connection hole (1401), and the connection hole (1401) is inserted and connected with one end of the air guide tube (903); Two rotating blocks (15) are sleeved on the top and bottom of the rotating rod (1201), and sealing blocks (1501) are fixedly connected to the opposite sides of the four rotating blocks (15); The height position of the air storage cylinder (13) on the rod wall of the rotating rod (1201) is limited by the rotating block (15) and the sealing block (1501). At the same time, the rotating block (15) is used to drive the air storage cylinder (13) to rotate synchronously with the rotation of the rotating rod (1201). The sealing block (1501) can seal the connection and increase the friction of the connection, so that the rotating rod (1201) can more smoothly drive the lower air storage cylinder (13) to rotate.

2. The continuous production system of bis(trichloromethyl) carbonate according to claim 1, characterized in that: The feeding assembly comprises a feeding machine body (1), a feeding hopper is arranged at the top of the feeding machine body (1), and a conveying pipe is fixedly connected to the discharge end at the bottom of the feeding machine body (1).

3. The continuous production system of bis(trichloromethyl) carbonate according to claim 1, characterized in that: The continuous chlorination assembly comprises a first ceramic tower reactor (2), a second ceramic tower reactor (3), a third ceramic tower reactor (4) and a fourth ceramic tower reactor (5), wherein the discharge ends and the feed ends of the first ceramic tower reactor (2), the second ceramic tower reactor (3), the third ceramic tower reactor (4) and the fourth ceramic tower reactor (5) are fixedly connected in sequence via a conveying pipe.

4. The continuous production system of bis(trichloromethyl) carbonate according to claim 3, characterized in that: The tops of the first ceramic tower reactor (2), the second ceramic tower reactor (3), the third ceramic tower reactor (4) and the fourth ceramic tower reactor (5) are all provided with exhaust gas discharge ends, and the bottoms of the first ceramic tower reactor (2), the second ceramic tower reactor (3), the third ceramic tower reactor (4) and the fourth ceramic tower reactor (5) are all provided with gas inlet ends on one side.

5. The continuous production system of bis(trichloromethyl) carbonate according to claim 4, characterized in that: The air inlet ends of the first ceramic tower reactor (2), the second ceramic tower reactor (3), the third ceramic tower reactor (4) and the fourth ceramic tower reactor (5) are connected to an air pump (7) via a delivery pipe, and the exhaust gas discharge ends of the first ceramic tower reactor (2), the second ceramic tower reactor (3), the third ceramic tower reactor (4) and the fourth ceramic tower reactor (5) are fixedly connected to an air inlet pipe (902) via a delivery pipe.

6. The continuous production system of bis(trichloromethyl) carbonate according to claim 5, characterized in that: The air inlet end of the inflation pump (7) is fixedly connected to a chlorine gas tank (8) via a delivery pipe, a first air filling end of the chlorine gas tank (8) and an exhaust pipe (901) are fixedly connected via the delivery pipe, a second air filling end is provided on the outer wall of the chlorine gas tank (8), and a control valve (6) is provided in the middle of each of the plurality of delivery pipes.

7. The continuous production system of bis(trichloromethyl) carbonate according to claim 1, characterized in that: An exhaust hole and an air inlet hole are respectively provided on both sides of the top of the gas collecting tank (9); the exhaust pipe (901) and the air inlet pipe (902) are respectively inserted into the exhaust hole and the air inlet hole; one end of the air inlet pipe (902) is fixedly connected to an air guide pipe (903) located inside the gas collecting tank (9); a limiting ring (904) is fixedly connected to the middle of the inner wall of the gas collecting tank (9); the limiting ring (904) is sleeved on the outer wall of the air guide pipe (903); a support block (905) is provided on the inner wall of the bottom end of the gas collecting tank (9); a support groove is provided on the top end of the support block (905); and a limiting groove is provided on the inner wall in the middle of the support groove.

8. The continuous production system of bis(trichloromethyl) carbonate according to claim 1, characterized in that: The bottom of the gas collecting tank (9) is sleeved with a support collar (10), the side of the bottom end of the support collar (10) is fixedly connected to a plurality of support legs (1001), the inner wall of the top of the gas collecting tank (9) is fixedly connected to a placement plate (11), the top of the placement plate (11) is provided with a rotating motor (12), and the output end of the rotating motor (12) passes through the middle of the placement plate (11) and is fixedly connected to the top of the rotating rod (1201); The bottom of the rotating rod (1201) is rotatably inserted and connected in the supporting groove, the bottom of the rotating rod (1201) is sleeved with a blocking ring (1202), and the blocking ring (1202) is rotatably inserted and connected in the limiting groove, and the top and bottom of the rotating rod (1201) are sleeved with two rotating blocks (15), and the four rotating blocks (15) are fixedly connected to sealing blocks (1501) on two opposite sides.

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