A raw material conveying device for polystyrene production

Abstract

The utility model relates to high polymer material production equipment technical field provides a kind of raw material conveying device for polystyrene production, comprising: transmission pipe body, the raw material conveying device for polystyrene production further includes: transmission structure, set on the surface of the transmission pipe body, the transmission structure includes: drop tube, set in the top of the transmission pipe body.The utility model, by opening the valve on the surface of drop tube, the input of polystyrene raw material is controlled, after material feeding is finished, the closure of all pipeline valves is controlled, inert gas is put into transmission pipe body by opening sealing cover, and sealing cover is covered, drive motor is started to work, let the gear two of output end drive gear one in the inside transmission of mounting bracket, and inside transmission in transmission pipe body, make transmission vane rotate in the inside transmission of transmission pipe body, by opening the valve of discharge pipeline, the conveying of material is controlled, reduce the security risk when transmission.

Description

Technical Field

[0001] This utility model relates to the field of polymer material production equipment technology, and in particular to a raw material conveying device for polystyrene production. Background Technology

[0002] Polystyrene is an important general-purpose plastic widely used in packaging, electrical appliances, and daily necessities. Its production typically employs suspension polymerization or bulk polymerization processes, with styrene monomer as the core raw material.

[0003] In the prior art, such as Chinese patent application CN202222383009.8, a raw material conveying device for polystyrene production includes a conveying platform. A filtering mechanism is installed at one side of the top of the conveying platform. The filtering mechanism includes a feeding plate, a guide hole, a mounting groove, a vibration spring, a movable frame, a vibration motor, an auxiliary roller, a guide box, a fan, a magnetic strip, a collection bag, and a guide plate. The feeding plate is welded to one side of the top of the conveying platform. This utility model is equipped with a filtering mechanism. The guide plate facilitates the guidance of materials and prevents them from deviating. The vibration motor and vibration spring facilitate the vibration of the movable frame. In conjunction with the fan and auxiliary roller, the scraps of materials fall through the gaps between the auxiliary rollers as they pass through. At the same time, the guide box facilitates the suction of scraps into the collection bag, and the magnetic strip makes it easy to disassemble the collection bag for easy cleaning by workers.

[0004] While the above-mentioned solutions have the advantages mentioned above, they also have disadvantages: styrene monomers are highly susceptible to self-polymerization under high temperature, light, or impurity catalysis, generating polymers that clog pipelines. Therefore, when some equipment transports raw materials to styrene, it affects continuous production. In addition, styrene is a flammable liquid, and its vapor can form an explosive mixture with air. Traditional open designs pose safety hazards that need to be addressed. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art: styrene monomers are prone to self-polymerization under high temperature, light, or impurity catalysis, generating polymers that block pipelines. As a result, some equipment affects continuous production when transporting raw materials to styrene. At the same time, styrene is a flammable liquid, and its vapor can form an explosive mixture with air. Traditional open or non-explosion-proof designs pose safety hazards.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a raw material conveying device for polystyrene production, comprising: a conveying pipe body, the raw material conveying device for polystyrene production further comprising:

[0007] A transmission structure is disposed on the surface of the transmission tube body, the transmission structure comprising:

[0008] A delivery tube is disposed above the transmission tube body, and the transmission tube body has an inner cavity inside;

[0009] A heat insulation structure is disposed on the surface of the transmission pipe body, the heat insulation structure comprising:

[0010] A water storage tank is connected to the lower part of the transmission pipe via a frame, and a water storage chamber is provided inside the water storage tank.

[0011] Preferably, the transmission structure further includes:

[0012] An air intake pipe is disposed on one end surface of the transmission pipe body, wherein the air intake pipe is connected to the interior of the transmission pipe body, and a sealing cap is detachably provided on the top of the air intake pipe.

[0013] The technical effect of adopting the above-mentioned further solution is that: inert gas is introduced through the air inlet pipe on the surface of the transmission tube to maintain a slight positive pressure, isolate oxygen, inhibit oxidative polymerization, and cooperate with the sealing cap for sealing.

[0014] Preferably, the transmission structure further includes:

[0015] The mounting bracket is fixedly mounted on the surface of the transmission tube, and a drive shaft is installed inside the mounting bracket via bearings.

[0016] The technical effect of adopting the above-mentioned further solution is that the drive shaft is supported and positioned by the mounting bracket on the surface of the transmission tube.

[0017] Preferably, the transmission structure further includes:

[0018] Gear 1 is disposed on the surface of the drive shaft, wherein the drive shaft is rotatably embedded inside the transmission tube via a sealing gasket.

[0019] The technical effect of adopting the above-mentioned further solution is that the transmission shaft provides a seal inside the transmission tube by means of a sealing gasket, and when the transmission shaft rotates, it drives the gear on the outer surface to rotate.

[0020] Preferably, the transmission structure further includes:

[0021] A transmission blade is disposed on one end surface of the drive shaft, wherein the transmission blade is slidably connected to the inside of the transmission tube.

[0022] The technical effect of adopting the above-mentioned further solution is that the material is transported by the transmission blades on the surface of the drive shaft rotating along the inside of the transmission tube.

[0023] Preferably, the transmission structure further includes:

[0024] The drive motor is detachably mounted on the inner wall of the mounting bracket. The output end of the drive motor is equipped with a second gear, which meshes with the first gear.

[0025] The technical effect of adopting the above-mentioned further solution is that when the drive motor on the surface of the mounting bracket is working, the output gear two transmits power to gear one.

[0026] Preferably, the insulation structure further includes:

[0027] A circulation pump is connected to one side surface of the water storage tank, and one end of the circulation pump is provided with a connecting pipe, which is connected to the inside of the transmission pipe.

[0028] The technical effect of adopting the above-mentioned further solution is that the medium inside the water storage tank is transferred to the inside of the transmission pipe through the connecting pipe by the circulating pump, thereby maintaining the temperature of the material inside the transmission pipe.

[0029] Preferably, a temperature sensor is installed inside the water storage tank via a sealing element.

[0030] The technical effect of adopting the above-mentioned further solution is that the temperature of the medium is monitored by a temperature sensor inside the water storage tank.

[0031] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0032] 1. In this utility model, the input of polystyrene raw materials is controlled by opening the valve on the surface of the feeding pipe. After the material is fed, all pipe valves are closed, the sealing cover is opened to release inert gas into the transmission pipe body, and the sealing cover is closed. The drive motor is started, so that the gear two at the output end drives the gear one to drive inside the mounting frame and inside the transmission pipe body, so that the transmission blades rotate inside the transmission pipe body. By opening the valve of the discharge pipe, the material conveying is controlled, reducing safety hazards during transmission.

[0033] 2. In this utility model, the circulating pump on the surface of the water tank works in conjunction with the refrigeration unit to control the temperature of the internal medium. With the help of a temperature sensor, the medium is transferred to the inner cavity, maintaining the temperature of the material inside the transfer pipe within a certain range, inhibiting styrene polymerization, maintaining continuous operation and improving work efficiency. Attached Figure Description

[0034] Figure 1 This utility model provides a top view of a raw material conveying device for polystyrene production;

[0035] Figure 2 This utility model provides a side view of a raw material conveying device for polystyrene production.

[0036] Figure 3 This utility model provides a partial cross-sectional structural diagram of a raw material conveying device for polystyrene production;

[0037] Figure 4 This utility model proposes a raw material conveying device for polystyrene production. Figure 1 Enlarged structural diagram at point A in the middle.

[0038] Legend:

[0039] 1. Transmission pipe body; 101. Dispensing pipe; 102. Air inlet pipe; 1021. Sealing cap; 103. Mounting bracket; 1031. Drive shaft; 1032. Gear 1; 1033. Transmission blade; 1034. Drive motor; 1035. Gear 2; 104. Inner cavity; 2. Water tank; 201. Circulation pump; 202. Connecting pipe; 203. Temperature sensor. Detailed Implementation

[0040] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0042] Example 1, as Figure 1-4 As shown, the raw material conveying device for polystyrene production includes a conveying pipe body 1 and a conveying structure disposed on the surface of the conveying pipe body 1; wherein the conveying structure includes a feeding pipe 101 disposed above the conveying pipe body 1 as a raw material feeding inlet, which can be connected to an upstream storage tank or metering tank; the feeding pipe 101 is in communication with the interior of the conveying pipe body 1; the conveying pipe body 1 is a horizontal or slightly inclined cylindrical pressure-resistant pipe, and its interior has an inner cavity 104 as a heat transfer space;

[0043] An air inlet pipe 102 is provided on one end surface of the transmission pipe 1, which is connected to the inside of the transmission pipe 1 to introduce inert gas. By injecting high-purity nitrogen, a slightly positive pressure environment is formed inside the transmission pipe 1, which effectively isolates air, inhibits oxidation reaction, and ensures the stability of raw materials. A sealing cap 1021 is detachably installed on the top of the air inlet pipe 102 for easy periodic inspection. A mounting bracket 103 is fixedly installed on the outer surface of the transmission pipe 1 to support a drive shaft 1031 that is rotatably mounted inside via bearings. One end of the shaft extends into the transmission pipe 1, and the other end is located in the external drive area. A mechanical seal or double-end face sealing gasket is provided at the connection between the drive shaft 1031 and the transmission pipe 1 to ensure that the system remains airtight when the rotating shaft is inserted, preventing raw material leakage or gas escape. The exposed end of the drive shaft 1031... A gear 1032 is fixedly mounted on the surface to receive power input. A drive motor 1034 is detachably mounted on the inner wall of the mounting frame 103. A gear 1035 is mounted on the output end of the drive motor 1034 and meshes with the gear 1032 to form an external reduction transmission system. By adjusting the motor speed, the rotation speed of the drive shaft 1031 can be precisely controlled to adapt to different flow requirements. A transmission blade 1033 is fixedly connected to one end of the drive shaft 1031 that extends into the inner cavity 104. The blade is of a spiral, paddle, or ribbon structure and rotates synchronously with the drive shaft 1031. When the drive motor 1034 is started, the transmission blade 1033 rotates in the inner cavity 104, applying axial thrust to the raw material to achieve low-shear, steady-flow continuous conveying and avoid local temperature rise or polymerization caused by high-speed stirring.

[0044] In this embodiment, the input of polystyrene raw materials is controlled by opening the valve on the surface of the feeding pipe 101. After the material is fed, all pipe valves are closed, the sealing cover 1021 is opened to release inert gas into the transmission pipe 1, and the sealing cover 1021 is closed. The drive motor 1034 is started to work, so that the output gear 1035 drives the gear 1032 to drive inside the mounting frame 103 and inside the transmission pipe 1, so that the transmission blade 1033 rotates inside the transmission pipe 1. By opening the valve of the discharge pipe, the material conveying is controlled, reducing safety hazards during transmission.

[0045] Example 2, as Figure 1-4As shown, the raw material conveying device for polystyrene production also includes a heat insulation structure installed on the surface of the transmission pipe 1. The heat insulation structure includes a water storage tank 2, which is fixedly connected to the lower part of the transmission pipe 1 via a support frame, serving as a storage and circulation unit for the constant-temperature medium. The tank has a closed water storage chamber inside. A circulation pump 201 is connected to one side of the water storage tank 2. The inlet end of the circulation pump 201 is connected to the water storage tank 2, and the outlet end is connected to a connecting pipe 202. This connecting pipe 202 extends to the transmission pipe 1 and connects to its internal channel, forming a closed circulation loop. During operation, the circulation pump 201 starts, pumping the constant-temperature liquid in the water storage tank 2 into the transmission pipe 1 through the connecting pipe 202. In the inner cavity 104, the liquid flows around the inner cavity 104 and exchanges heat with the internal material. An external heating device can be connected to heat the medium in the water storage tank 2 to maintain the material in a suitable temperature range and avoid increasing viscosity or decreasing fluidity. A temperature sensor 203 is installed inside the water storage tank 2 through a sealing component to monitor the temperature of the circulating medium in real time. The detection data of the temperature sensor 203 can be transmitted to a PLC or DCS system to realize closed-loop automatic control. When the temperature of the circulating liquid is detected to be higher than the set value, the system automatically starts the refrigeration unit or turns on the cooling fan. When the temperature is too low, the heating device is activated to ensure that the material is always in the optimal stable temperature range throughout the entire conveying process.

[0046] In this embodiment, the circulating pump 201 on the surface of the water tank 2 works in conjunction with the refrigeration unit to control the temperature of the internal medium, and the temperature sensor 203 is used to observe the temperature. The medium is then transferred to the inner cavity 104 to maintain the temperature of the material inside the transmission pipe 1 within a certain range, thereby inhibiting styrene polymerization, maintaining continuous operation and improving work efficiency.

[0047] Working principle: During use, the input of polystyrene raw materials is controlled by opening the valve on the surface of the feeding pipe 101. After the material is fed, all pipe valves are closed, the sealing cover 1021 is opened to release inert gas into the transmission pipe 1, and the sealing cover 1021 is closed. The drive motor 1034 is started, which drives the gear 1032 at the output end to drive the gear 1032 inside the mounting frame 103 and inside the transmission pipe 1, causing the transmission blade 1033 to rotate inside the transmission pipe 1. The material conveying is controlled by opening the valve of the discharge pipe, reducing safety hazards during transmission. In addition, the circulation pump 201 on the surface of the water tank 2 works in conjunction with the refrigeration unit to control the temperature of the internal medium. With the help of the temperature sensor 203, the medium is transferred to the inner cavity 104 to maintain the temperature of the material inside the transmission pipe 1 within a certain range, inhibiting styrene polymerization, maintaining continuous operation and improving work efficiency.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A raw material conveying device for polystyrene production, comprising: The transmission pipe (1) is characterized in that the raw material conveying device for polystyrene production further includes: A transmission structure is disposed on the surface of the transmission tube (1), the transmission structure comprising: The delivery tube (101) is disposed above the transmission tube body (1), and the transmission tube body (1) has an inner cavity (104) inside. A heat insulation structure is disposed on the surface of the transmission pipe (1), the heat insulation structure comprising: The water storage tank (2) is connected to the lower part of the transmission pipe (1) via a frame, and the water storage tank (2) has a water storage chamber inside.

2. The raw material conveying device for polystyrene production according to claim 1, characterized in that: The transmission structure further includes: An air intake pipe (102) is disposed on one end surface of the transmission pipe body (1), wherein the air intake pipe (102) is connected to the interior of the transmission pipe body (1), and a sealing cap (1021) is detachably disposed on the top of the air intake pipe (102).

3. The raw material conveying device for polystyrene production according to claim 2, characterized in that: The transmission structure further includes: The mounting bracket (103) is fixedly disposed on the surface of the transmission tube (1), and the inside of the mounting bracket (103) is provided with a transmission shaft (1031) through a bearing.

4. The raw material conveying device for polystyrene production according to claim 3, characterized in that: The transmission structure further includes: Gear 1 (1032) is disposed on the surface of the drive shaft (1031), wherein the drive shaft (1031) is rotatably embedded inside the transmission tube (1) by means of a sealing gasket.

5. A raw material conveying device for polystyrene production according to claim 4, characterized in that: The transmission structure further includes: A transmission blade (1033) is disposed on one end surface of the transmission shaft (1031), wherein the transmission blade (1033) is slidably connected to the inside of the transmission tube (1).

6. A raw material conveying device for polystyrene production according to claim 5, characterized in that: The transmission structure further includes: The drive motor (1034) is detachably mounted on the inner wall of the mounting bracket (103). The output end of the drive motor (1034) is provided with a second gear (1035), wherein the second gear (1035) is engaged with the first gear (1032).

7. A raw material conveying device for polystyrene production according to claim 1, characterized in that: The insulation structure also includes: A circulation pump (201) is connected to one side surface of the water storage tank (2), wherein one end of the circulation pump (201) is provided with a connecting pipe (202), wherein the connecting pipe (202) is connected to the interior of the transmission pipe body (1).

8. A raw material conveying device for polystyrene production according to claim 7, characterized in that: The insulation structure also includes a temperature sensor (203) installed inside the water storage tank (2) through a sealing element.

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