Purification device for chlorinated paraffin by-products

Abstract

The utility model belongs to the field of chemical production equipment, and discloses a chlorinated paraffin by-product purification device, which consists of a reaction kettle, a stirring mechanism, a filtering mechanism, a pump body, a distillation mechanism and a cooling mechanism. The reaction kettle is provided with a first feed port for feeding, and the stirring mechanism drives stirring blades and a scraper plate through a motor to realize material mixing and inner wall cleaning; the filtering mechanism adopts a wire mesh for rough filtration and a microfiltration membrane for fine filtration to remove large and small particle impurities; the pump body conveys the filtered materials to the distillation mechanism, the materials are heated by the heating rod, and low-boiling-point substances and high-boiling-point substances are separated by utilizing boiling point difference; a spiral condensation pipe in the cooling mechanism is matched with cooling liquid to cool and collect distilled steam. The device has the characteristics of high automation degree, safety, reliability, energy conservation, environmental protection and the like, can remarkably improve the purity and the recycling rate of the byproducts, reduces the production cost and the environmental pollution, and has a wide application prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical production equipment, concretely relates to a device for purifying by -product produced in the production process of chlorinated paraffin. BACKGROUND

[0002] Chlorinated paraffin is an important chemical product, which is widely used in plastic, rubber, paint and other industries. In the production process of chlorinated paraffin, a large amount of by -product will inevitably be produced. These by -products usually contain unreacted raw materials, polymers produced in the reaction process, mechanical impurities and other harmful ingredients. If these by -products are directly discharged, not only the resources will be wasted, but also the environment will be seriously polluted. Therefore, purifying the chlorinated paraffin by -product to realize its recycling has important economic and environmental significance.

[0003] At present, the existing chlorinated paraffin by -product purification method and device have some deficiencies. For example, the structure of part of the purification device is relatively simple, the purification effect is not ideal, and various impurities in the by -product can not be effectively removed; some devices need more manual intervention in the operation process, the automation degree is low, which leads to low production efficiency, and there are certain safety hazards in the operation process; the corrosion of the by -product is not fully considered in the selection of the material of the device, the service life of the equipment is short, and the maintenance cost is high. Therefore, a new type of chlorinated paraffin by -product purification device is urgently needed to overcome the deficiencies of the prior art. UTILITY MODEL CONTENT

[0004] The utility model provides a purification device for chlorinated paraffin by -product in view of the deficiency of prior art, and the device can efficiently purify the chlorinated paraffin by -product through reasonable structure design and process combination, improve the purity and recycling rate of by -product, the device has high automation degree, is easy to operate, safe and reliable, can reduce production cost and environmental pollution.

[0005] In order to solve the above -mentioned problems, the technical scheme adopted by the utility model is as follows: a purification device for chlorinated paraffin by -product, including reaction kettle, the stirring mechanism is installed in the reaction kettle, still including filter mechanism, distillation mechanism and cooling mechanism, the bottom of reaction kettle is installed with first discharge pipe, the tail end of first discharge pipe is connected with filter mechanism, the tail end of filter mechanism is connected with pump body through the connecting pipe, the output end of pump body is connected with distillation mechanism through the connecting pipe, the top of distillation mechanism is installed with gas outlet pipe, the gas outlet pipe is connected with one end of cooling mechanism.

[0006] Preferably, the outer surface of the bottom end of the reaction kettle is provided with a support frame, and one side of the top end of the reaction kettle is provided with a first feeding port for feeding.

[0007] Preferably, the center of the top end of the reaction kettle is provided with a motor frame, the motor frame is provided with a motor, the output end of the motor is provided with a transmission shaft, the outer surface of the transmission shaft is uniformly provided with stirring blades, and the bottom end of the stirring blades is provided with two scrapers.

[0008] Preferably, the first discharge pipe is provided with a valve body at the end away from the reaction kettle, and the valve body is connected with the filtering mechanism through a connecting pipe.

[0009] Preferably, the filtering mechanism comprises a filtering pipe, the inner wall of the filtering pipe is provided with a first filter screen and a second filter screen, the first filter screen adopts a wire mesh structure for coarse filtration, and the second filter screen is a microporous filter membrane.

[0010] Preferably, the distillation mechanism comprises a distillation tank, the top end of the distillation tank is provided with a second feeding port, and the inner wall of the second feeding port is connected with the end of the filtering pipe through a connecting pipe.

[0011] Preferably, the distillation tank is internally provided with two heating rods, and the bottom of the distillation tank is provided with a second discharge pipe penetrating through the distillation tank.

[0012] Preferably, the top end of the distillation tank is provided with an air outlet pipe penetrating through the distillation tank, the end of the air outlet pipe is provided with a condensing pipe, the condensing mechanism comprises a condensing tank, the condensing pipe is made of metal, the condensing pipe is spirally arranged in the condensing tank, the end of the condensing pipe is provided with a third discharge pipe, and the top end of the condensing tank is provided with a water inlet pipe.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] High-efficiency purification: the purification device of the utility model fully stirs by-products through the stirring mechanism, so that the by-products are uniformly mixed, and good foundation is provided for subsequent filtering and distillation treatment steps. The filtering mechanism adopts a multi-stage filtering mode, large-particle impurities are removed through coarse filtration first, and fine filtration is performed by using a microporous filter membrane, so that various granular impurities in the by-products can be effectively removed. The distillation mechanism adopts a heating rod heating and reduced-pressure distillation mode, the effective separation of impurities and target products can be realized according to the boiling point differences of different components in the by-products. The cooling mechanism can quickly cool and condense the steam generated during distillation through the spiral condensing pipe and the cooling effect of the cooling liquid, and low-boiling-point impurities are convenient to collect. The combination of various treatment modes significantly improves the purification effect of the by-products, greatly improves the purity of the by-products, and is beneficial to the recycling of the by-products.

[0015] High degree of automation: the components in the device are connected through pipes and connecting pipes, and under the action of the pump body, the by-products can automatically flow in the device, reducing manual intervention. At the same time, the motor, pump body and other equipment can be automatically controlled through the control system to realize the automatic operation of the device, reduce the labor intensity of the operator and improve the production efficiency.

[0016] Safe and reliable: the reaction kettle is supported by the support frame to ensure the stability of the device, and reasonable discharge ports and gas discharge pipes are arranged at key parts of the device, such as the distillation tank, to avoid safety hazards caused by excessive pressure. In addition, the corrosion of chlorinated paraffin by-products is fully considered in the selection of materials, and the parts in contact with the materials of the reaction kettle, filter pipe and distillation tank are made of corrosion-resistant materials, which prolongs the service life of the equipment, reduces the maintenance cost of the equipment and ensures the safe and reliable operation of the device.

[0017] Energy saving and environmental protection: through the purification treatment of chlorinated paraffin by-products, the recycling of by-products is realized, the waste of resources is reduced, and the production cost is reduced. At the same time, the pollution caused by direct discharge of by-products to the environment is avoided, which meets the requirements of energy saving and environmental protection and has good economic and environmental benefits. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model relates to a kind of purification devices for chlorinated paraffin by-products.

[0019] Figure 2 The utility model relates to a kind of purification devices for chlorinated paraffin by-products.

[0020] Figure 3 The utility model relates to a kind of purification devices for chlorinated paraffin by-products.

[0021] Figure 4 The utility model relates to a kind of purification devices for chlorinated paraffin by-products.

[0022] 1-reaction kettle, 2-stirring mechanism, 3-valve body, 4-filter mechanism, 5-pump body, 6-distillation mechanism, 7-cooling mechanism, 8-support frame, 9-first inlet, 10-motor frame, 11-motor, 12-transmission shaft, 13-stirring blade, 14-scraping blade, 15-first discharge pipe, 16-filter pipe, 17-first filter screen, 18-second filter screen, 19-distillation tank, 20-heating rod, 21-second inlet, 22-second discharge pipe, 23-gas discharge pipe, 24-condenser pipe, 25-condenser tank, 26-water inlet pipe, 27-third discharge pipe. DETAILED DESCRIPTION

[0023] The utility model provides a specific embodiment below, and the technical scheme of the utility model is further described in connection with the drawings, but the utility model is not limited to these embodiments.

[0024] As Figures 1-4 The utility model provides a kind of purification device for chlorinated paraffin by-product, including reaction kettle, stirring mechanism, filtering mechanism, pump body, distillation mechanism and cooling mechanism.

[0025] Reaction kettle: reaction kettle 1 is the starting processing unit of entire purification device.Its bottom end outer surface is equipped with support frame 8, for supporting reaction kettle, guarantee the stability of device.Reaction kettle 1 top one side is equipped with first inlet 9, it is convenient to be into reaction kettle with chlorinated paraffin by-product.

[0026] Stirring mechanism: the central position of reaction kettle 1 top is equipped with motor bracket 10, and the motor 11 of motor bracket 10 installation is the power for stirring mechanism.The output end of motor 11 is installed transmission shaft 12, and transmission shaft 12 is inserted into inside through the top of reaction kettle 1, and the outer surface of transmission shaft 12 is evenly distributed with stirring blade 13.Under the drive of motor 11, stirring blade 13 can be fully stirred in the by-product in reaction kettle 1, so that by-product mixes evenly, is favorable to subsequent processing process.In addition, the bottom end of stirring blade 13 is equipped with two scrapers 14, and the side surface of scraper 14 is connected with the inner wall of reaction kettle 1, and in the stirring process, scraper 14 can scrape the by-product adhered on the inner wall of reaction kettle, avoids material residue, guarantees stirring effect and the cleanness of reaction kettle.

[0027] Filtering mechanism: the bottom end of reaction kettle 1 is equipped with first discharge pipe 15, and the tail end of first discharge pipe 15 is connected with filtering mechanism 4.The one end of first discharge pipe 15 away from reaction kettle 1 is equipped with valve body 3, and by controlling the opening and closing of valve body 3, the flow and time of by-product from reaction kettle 1 into filtering mechanism 4 can be controlled.Filtering mechanism 4 includes filter tube 16, and the inner wall of filter tube 16 is equipped with first filter screen 17 and second filter screen 18.Among them, first filter screen 17 is coarse filtration, adopts wire mesh structure, and can remove larger particle impurities in by-product, such as mechanical impurities, polymer etc.;Second filter screen 18 is microporous filter membrane, and can further remove small particle and suspended matter, realizes fine filtration to by-product.

[0028] Pump body: the tail end of filtering mechanism 4 is connected with pump body 5 through connecting pipe, and the function of pump body 5 is to deliver the by-product filtered to distillation mechanism 6.Pump body 5 can provide stable delivery pressure, guarantees the continuous flow of by-product in device, improves purification efficiency.

[0029] Distillation mechanism: the distillation mechanism 6 comprises a distillation tank 19, the top end of the distillation tank 19 is provided with a second inlet 21, the inner wall of the second inlet 21 is connected with the end of the filtering pipe 16 through a connecting pipe, so that the filtered by-products can smoothly enter the distillation tank 19. Two heating rods 20 are installed in the inside of the distillation tank 19, the heating rods 20 can heat the by-products in the distillation tank 19, so that the by-products are subjected to distillation separation. The bottom of the distillation tank 19 is provided with a second discharge pipe 22 penetrating through the distillation tank 19, which is used for discharging the high-boiling-point substances remaining after distillation; the top end of the distillation tank 19 is provided with a gas outlet pipe 23 penetrating through the distillation tank 19, the low-boiling-point impurities become steam during the distillation process, and then are discharged through the gas outlet pipe 23.

[0030] Cooling mechanism: the gas outlet pipe 23 is connected with one end of the cooling mechanism 7, the cooling mechanism 7 comprises a condensation tank 25. The end of the gas outlet pipe 23 is provided with a condensation pipe 24, the condensation pipe 24 is made of metal and is spirally installed in the condensation tank 25. The spiral structure increases the contact area of the condensation pipe 24 and the cooling liquid in the condensation tank 25, and improves the cooling effect. The end of the condensation pipe 24 is provided with a third discharge pipe 27, which is used for collecting the low-boiling-point substances after condensation. The top end of the condensation tank 25 is provided with a water inlet pipe 26, the cooling liquid is injected into the condensation tank 25, so that the steam in the condensation pipe 24 is cooled.

[0031] In the actual use of the chlorinated paraffin by-product purification device, the specific operation steps are as follows:

[0032] Feeding: open the first inlet 9 at the top end of the reaction kettle 1, and pour the chlorinated paraffin by-products into the reaction kettle 1 through the first inlet 9. After the feeding is completed, close the first inlet 9.

[0033] Stirring: start the motor 11 on the motor frame 10, the motor 11 drives the transmission shaft 12 to rotate, and then the stirring blade 13 and the scraper 14 rotate in the reaction kettle 1. The stirring blade 13 stirs the by-products sufficiently, and the scraper 14 scrapes the by-products attached to the inner wall of the reaction kettle 1, so that the by-products are uniformly mixed. The stirring time is adjusted according to the characteristics of the by-products and the actual situation, generally 15 minutes.

[0034] Filtering: open the valve 3 on the first discharge pipe 15, under the action of gravity, the uniformly stirred by-products in the reaction kettle 1 enter the filtering pipe 16 of the filtering mechanism 4 through the first discharge pipe 15. The by-products are first subjected to coarse filtration through the first filter screen 17 to remove larger impurities, and then are subjected to fine filtration through the second filter screen 18 to remove small particles and suspended matters. The filtered by-products remain in the filtering pipe 16.

[0035] Transportation: start the pump body 5, the pump body 5 transports the byproduct in the filter tube 16 to the distillation tank 19 of the distillation mechanism 6 through the connecting pipe. By controlling the flow and transportation time of the pump body 5, it is ensured that the byproduct can enter the distillation tank 19 smoothly and stably.

[0036] Distillation: start the heating rod 20 in the distillation tank 19, and heat the byproduct in the distillation tank 19. During the heating process, the low-boiling-point impurities in the byproduct gradually vaporize into steam, which is discharged through the gas outlet pipe 23 at the top end of the distillation tank 19; and the high-boiling-point substances remain in the distillation tank 19 and are discharged through the second discharge pipe 22 at the bottom of the distillation tank 19. During the distillation process, the heating temperature and the distillation time are reasonably controlled according to the composition and boiling point characteristics of the byproduct, so as to ensure the effective separation of the impurities.

[0037] Cooling: the steam discharged from the gas outlet pipe 23 enters the condenser pipe 24 of the cooling mechanism 7, and the condenser pipe 24 is spirally installed in the condenser tank 25. The cooling liquid is injected into the condenser tank 25 through the water inlet pipe 26 at the top end of the condenser tank 25, and the cooling liquid cools the steam in the condenser pipe 24 to make the steam condense into liquid. The low-boiling-point substances after cooling and condensation are discharged through the third discharge pipe 27 at the end of the condenser pipe 24 and collected.

[0038] Through the above series of operation steps, the chlorinated paraffin byproduct purification device of the present application can efficiently and continuously purify the chlorinated paraffin byproduct, obtain a product with high purity, and realize the recycling of the byproduct.

[0039] During the operation of the device, regular inspection and maintenance of each part are required, for example, regular inspection of the sealing property of the reaction kettle to prevent leakage of the byproduct; inspection of whether the filter screen of the filtering mechanism is blocked and timely replacement of the blocked filter screen; inspection of whether the heating rod of the distillation mechanism is working normally and whether the cooling liquid of the cooling mechanism needs to be supplemented, etc. Through regular inspection and maintenance, the normal operation and purification effect of the device are ensured.

[0040] In summary, the chlorinated paraffin byproduct purification device provided by the present application has the advantages of efficient purification, high automation, safety and reliability, energy saving and environmental protection, etc. through reasonable structural design and process combination, and can effectively solve the problems existing in the existing chlorinated paraffin byproduct purification technology, and has wide application prospect and promotion value.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A purification unit for chlorinated paraffin by-products, comprising a reactor (1), characterized by the fact that: The reaction kettle (1) is provided with a stirring mechanism (2), and further comprises a filtering mechanism (4), a distillation mechanism (6) and a cooling mechanism (7), the bottom end of the reaction kettle (1) is provided with a first discharge pipe (15), the distillation mechanism (6) is connected with the filtering mechanism (4) through a connecting pipe, the bottom end of the filtering mechanism (4) is connected with a pump body (5) through a connecting pipe, the output end of the pump body (5) is connected with the distillation mechanism (6) through a connecting pipe, and the top end of the distillation mechanism (6) is provided with a gas outlet pipe (23), which is connected with one end of the cooling mechanism (7).

2. A purification apparatus for chlorinated paraffin by-products as claimed in claim 1, characterized in that: The bottom end of the reaction kettle (1) is provided with a support frame (8), and one side of the top end of the reaction kettle (1) is provided with a first feeding port (9) for feeding.

3. A purification apparatus for chlorinated paraffin by-products as claimed in claim 2, characterized in that: The top end of the reaction kettle (1) is provided with a motor frame (10) at the center position, the motor frame (10) is provided with a motor (11), the output end of the motor (11) is provided with a transmission shaft (12), the outer surface of the transmission shaft (12) is uniformly provided with stirring blades (13), the bottom end of the stirring blades (13) is provided with two scrapers (14), and the side surface of the scraper (14) is connected with the inner wall of the reaction kettle (1).

4. A purification apparatus for chlorinated paraffin by-products as claimed in claim 1, characterized in that: The first discharge pipe (15) is provided with a valve body (3) at the end away from the reaction kettle (1), and the end of the valve body (3) away from the reaction kettle is connected with the filtering mechanism (4) through a connecting pipe.

5. A purification apparatus for chlorinated paraffin by-products as claimed in claim 1, characterized in that: The filtering mechanism (4) comprises a filtering pipe (16), and the inner wall of the filtering pipe (16) is provided with a first filter screen (17) and a second filter screen (18), the first filter screen (17) is a metal screen structure for rough filtering, and the second filter screen (18) is a microporous filter membrane.

6. A purification apparatus for chlorinated paraffin by-products as claimed in claim 1, characterized in that: The distillation mechanism (6) comprises a distillation tank (19), and the top end of the distillation tank (19) is provided with a second feeding port (21), and the inner wall of the second feeding port (21) is connected with the end of the filtering pipe (16) through a connecting pipe.

7. A purification apparatus for chlorinated paraffin by-products as claimed in claim 6, characterised in that: The distillation tank (19) is provided with two heating rods (20) inside, and the bottom end of the distillation tank (19) is provided with a second discharge pipe (22) penetrating through the distillation tank (19).

8. A purification apparatus for chlorinated paraffin by-products as claimed in claim 7, characterised in that: The top end of the distillation tank (19) is provided with a gas outlet pipe (23) penetrating through the distillation tank (19), the end of the gas outlet pipe (23) is provided with a condenser pipe (24), the cooling mechanism (7) comprises a condenser tank (25), the condenser pipe (24) is made of metal, the condenser pipe (24) is spirally installed in the condenser tank (25), the end of the condenser pipe (24) is provided with a third discharge pipe (27), and the top end of the condenser tank (25) is provided with a water inlet pipe (26).

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