Stirring kettle for producing recycled polyester particles

Abstract

The utility model discloses a stirring kettle for producing regenerated polyester particles, and relates to the technical field of production of regenerated polyester particles. The reaction kettle comprises a kettle body, a stirring assembly is arranged above the kettle body and comprises a kettle cover arranged on the kettle body, a motor is connected to the middle of the upper surface of the kettle cover, stirring rods are connected to the circumferential side face of a rotating shaft vertically connected to the output end of the motor, and stirring shafts symmetrically and rotationally connected are arranged on the lower surface of the kettle cover. The lower ends of the rotating shaft and the stirring shaft penetrate through the kettle cover; and a heating assembly is arranged on the outer side wall of the kettle body. The stirring assembly is arranged to stir recycled polyester particle raw materials in the kettle body in different directions, the stirring and mixing efficiency can be improved, the heating assembly is arranged to heat and dry recycled polyester particles repeatedly, the recycled polyester particles make uniform contact with hot air, and the drying quality of the recycled polyester particles is improved.

Description

Technical Field

[0001] This utility model belongs to the field of recycled polyester granule production technology, and in particular relates to a stirring kettle for recycled polyester granule production. Background Technology

[0002] Recycled polyester granules can be used to make various plastic products, such as plastic bottles and plastic bags. Moreover, recycled polyester granules have good toughness and durability. When mixed with virgin polyester granules, they can reduce costs and the demand for virgin materials. A mixing tank is used in the production process of recycled polyester granules.

[0003] A search revealed a polyester granule mixing vessel for polyester film production disclosed in patent document CN214725474U, but it still has the following drawbacks in practical use:

[0004] 1. The polyester granule mixing vessel for polyester film production disclosed in the patent document with patent publication number CN214725474U, in the process of use, the stirring mechanism is operated to stir and mix the materials inside the mixing tank. However, multiple sets of stirring rods can only rotate in the same direction, and stirring the materials inside the mixing tank in a single direction requires more time to stir, so that the materials are mixed evenly and the mixing efficiency is reduced.

[0005] 2. The polyester granule mixing tank for polyester film production disclosed in the patent document with patent publication number CN214725474U involves starting a hot air blower to allow hot gas to enter the interior of the mixing tank through the air inlet pipe, and the raw materials inside the mixing tank come into contact with the hot gas to achieve drying. However, it is not convenient to stir the material multiple times, and the hot gas enters the interior of the mixing tank from a single direction, causing uneven heating of the material and reducing the drying quality of the material.

[0006] To address these issues, we provide a stirred tank for the production of recycled polyester granules. Utility Model Content

[0007] The purpose of this utility model is to provide a stirring kettle for the production of recycled polyester granules. By setting a stirring component, it is convenient to stir in different directions at the same time, thereby accelerating the efficiency of uniform mixing of recycled polyester granules. By setting a heating component, the recycled polyester granules are heated and dried evenly and repeatedly, thereby improving the drying quality of the recycled polyester granules. This solves the technical problem mentioned in the background art of the polyester granule stirring kettle for the production of polyester film disclosed in the patent document with patent publication number CN214725474U.

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0009] This utility model relates to a stirred tank for producing recycled polyester granules, comprising a tank body, a stirring assembly mounted on the top of the tank body, a tank cover mounted on the tank body, a motor connected to the center of the upper surface of the tank cover, a stirring rod connected to the circumferential side of a vertically connected rotating shaft at the output end of the motor, and a symmetrically rotating stirring shaft on the lower surface of the tank cover. The lower ends of both the rotating shaft and the stirring shaft penetrate the tank cover. A driven gear meshes with the side of a main gear sleeved on the upper circumferential side of the rotating shaft, and the driven gear is sleeved on the upper circumferential side of the stirring shaft. A cleaning brush is connected to the lower end of the rotating shaft. A heating assembly is mounted on the outer wall of the tank body, comprising a fan connected to the outer wall of the tank body. The outlet end of the fan is connected to a three-way pipe, and the other two ends of the three-way pipe are connected symmetrically to an upper and lower annular pipe on the inner circumferential side of the tank body. The inlet end of the fan is connected to a connecting pipe, and nozzles arranged in a ring array are connected on the inner side of both the upper and lower annular pipes.

[0010] The present invention is further configured such that a valve is connected to the outer wall of the discharge hopper connected to the lower surface of the vessel body, and the outer wall of the discharge hopper has support legs connected in a ring array.

[0011] The present invention is further configured such that the material blocking plate sleeved on the inner circumferential side of the reactor body has material dropping holes arranged in a ring array, and the two upper ring tubes and the lower ring tube are symmetrically arranged with the material blocking plate as the fixed point.

[0012] The present invention is further configured such that the screws connected in a ring array on the upper part of the outer side wall of the vessel body have an L-shaped structure, and the abutment connected to the vertical section of the screw is placed on the vessel cover.

[0013] The present invention is further configured such that the kettle lid has a connected feed hopper, and the outer wall of the connected exhaust pipe on the kettle lid has a connected pneumatic valve.

[0014] The present invention is further configured such that the lower end of the connecting pipe is connected to an air-gathering box, and the air-gathering box is connected to the support leg.

[0015] The present invention is further configured such that the side wall of the gas-gathering box has a detachable box cover, and the lower part of the side wall of the box cover has an embedded filter plate.

[0016] The present invention is further configured such that the interior of the internally connected mounting frame of the gas collecting box has equidistantly distributed heating wires, and the heating wires are located above the filter plate.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting up a stirring assembly, introduces recycled polyester granule raw materials into the reactor body through the feed hopper. After the motor is started, the rotating shaft rotates, the main gear rotates, the driven gear rotates, and the stirring shaft rotates. The stirring shaft and the rotating shaft rotate in opposite directions, so that the recycled polyester granule raw materials inside the reactor body are stirred and mixed in different directions, which helps to accelerate the mixing efficiency of the recycled polyester granule raw materials and thus improve the production efficiency of recycled polyester granules.

[0019] 2. This utility model, by setting up a heating component and starting the fan, allows external gas to enter the gas-gathering box through the filter plate. The gas inside the gas-gathering box is heated by the heating wire. The heated gas passes through the interior of the upper and lower annular pipes and is then sprayed above and below the baffle plate through the nozzles. This process heats and dries the recycled polyester particles inside the reactor multiple times and evenly, thereby accelerating the drying quality of the recycled polyester particles.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0022] Figure 1 A three-dimensional schematic diagram of a stirred tank for the production of recycled polyester granules;

[0023] Figure 2 This is a schematic diagram showing the connection between the reactor body and the baffle plate.

[0024] Figure 3 This is a schematic diagram showing the connection between the baffle plate and the mixing assembly;

[0025] Figure 4 This is a schematic diagram showing the connection between the three-way pipe, the upper annular pipe, the lower annular pipe, and the material blocking plate.

[0026] Figure 5 This is a schematic diagram showing the connection between the connecting pipe, the gas collection box, the filter plate, and the heating wire.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1-Cafe body, 101-Support leg, 102-Discharge hopper, 103-Blocking plate, 103a-Discharge hole, 2-Stirring assembly, 201-Cafe cover, 201a-Feed hopper, 201b-Exhaust pipe, 202-Motor, 202a-Shaft, 203-Main gear, 203a-Driven gear, 204-Screw, 204a-Block, 205-Stirring shaft, 205a-Stirring rod, 206-Cleaning brush, 3-Heating assembly, 301-Fan, 302-T-connector, 303-Gas collection box, 303a-Box cover, 303b-Filter plate, 303c-Setting frame, 303d-Heating wire, 304-Connecting pipe, 305-Upper annular pipe, 305a-Nozzle, 305b-Lower annular pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figure 1 and Figure 2 The present invention is a stirring vessel for producing recycled polyester granules, comprising a vessel body 1, a support leg 101, a discharge hopper 102, a baffle plate 103 and a discharge hole 103a. The support leg 101 is used to support the vessel body, and the discharge hopper 102 is used to discharge the recycled polyester granules inside the vessel body 1.

[0032] Specifically, the lower surface of the vessel body 1 has a discharge hopper 102 that is connected and fixed, the outer side wall of the discharge hopper 102 has a connecting support leg 101, the material blocking plate 103 is sleeved inside the vessel body 1, and the material blocking plate 103 has a discharge hole 103a.

[0033] Furthermore, the support legs 101 are arranged in a ring array, the discharge holes 103a are opened in a ring array, and the discharge holes 103a are strip-shaped.

[0034] The operation process of this embodiment is as follows: the support leg 101 is placed stably on the surface, and the reactor body 1 is stably erected on the ground; the recycled polyester particles inside the reactor body 1 pass through the discharge hole 103a and enter the discharge hopper 102 for discharge.

[0035] Example 2

[0036] Please see Figure 1 and Figure 3Based on the first specific embodiment, a stirring assembly 2 is provided. The stirring assembly 2 includes a lid 201, a motor 202, a rotating shaft 202a, a main gear 203, a driven gear 203a, a stirring shaft 205, a stirring rod 205a, and a cleaning brush 206. By controlling the motor 202, the rotating shaft 202a and the stirring shaft 205 rotate in opposite directions, thereby stirring the recycled polyester granule raw material inside the reactor body 1 in different directions, which is beneficial to accelerate the stirring and mixing efficiency of the recycled polyester granules.

[0037] Specifically, the vessel lid 201 abuts against the vessel body 1, and a screw 204 is fixedly connected to the outer wall of the vessel body 1. The vertical section of the screw 204 has a threaded abutment block 204a, which abuts against the vessel lid 201. The vessel lid 201 has a connected feed hopper 201a and a connected exhaust pipe 201b. The exhaust pipe 201b has a connected pneumatic valve. The motor 202 is connected to the middle of the upper surface of the vessel lid 201. The output end of the motor 202 has a vertically connected rotating shaft 202a. The lower end of the shaft 202a passes through the lid 201. The stirring rod 205a connected to the peripheral wall of the shaft 202a is located inside the body 1. The lower surface of the lid 201 has a rotating stirring shaft 205, and the stirring rod 205a connected to the peripheral wall of the shaft 205 is located inside the body 1. The peripheral wall of the shaft 202a has a main gear 203 sleeved on it. The secondary gear 203a, which is laterally meshed with the main gear 203, is sleeved on the peripheral wall of the stirring shaft 205. The cleaning brush 206 connected to the lower end of the shaft 202a abuts against the baffle plate 103.

[0038] Furthermore, the screws 204 are arranged in a ring array, and the cross-section of the screws 204 is L-shaped, and the two stirring shafts 205 are arranged symmetrically;

[0039] The operation process of this embodiment is as follows: start the motor 202, the rotating shaft 202a rotates, the main gear 203 rotates, the driven gear 203a rotates, the stirring shaft 205 rotates, and the stirring rod 205a rotates to stir and mix the recycled polyester granule raw material inside the reactor body 1. The rotation direction of the stirring shaft 205 is opposite to that of the rotating shaft 202a. When the stop block 204a is rotated, the stop block 204a releases the position restriction of the reactor cover 201. Then, the reactor cover 201 is removed from the reactor body 1, the stirring assembly 2 is inspected, and the inside of the reactor body 1 is cleaned. Conversely, the reactor cover 201 is fixed on the reactor body 1.

[0040] Example 3

[0041] Please see Figure 1 , Figure 4 and Figure 5Based on specific embodiments one and two, a heating component 3 is provided. The heating component 3 includes a fan 301, a three-way pipe 302, a gas-gathering box 303, a box cover 303a, a filter plate 303b, a mounting frame 303c, an electric heating wire 303d, a connecting pipe 304, an upper annular pipe 305, a nozzle 305a, and a lower annular pipe 305b. When the fan 301 is started, external gas enters the gas-gathering box 303 and is heated by the electric heating wire 303d. The hot gas enters the interior of the reactor body 1 through the nozzle 305a and comes into uniform contact with the recycled polyester particles inside the reactor body 1, so that the recycled polyester particles are heated and dried evenly and in multiples.

[0042] Specifically, the air-gathering box 303 is connected to the support leg 101, and the opening side of the air-gathering box 303 has a detachable cover 303a. A filter plate 303b is embedded in the lower part of the side wall of the cover 303a. An installation frame 303c connected inside the air-gathering box 303 is located above the filter plate 303b, and a heating wire 303d is connected inside the installation frame 303c. A connecting pipe 304 is fixedly connected to the upper surface of the air-gathering box 303, and a fan 301 is connected to the upper end of the connecting pipe 304. 301 is connected to the outer wall of the vessel body 1. The blower 301 has a connecting three-way pipe 302. One end of the three-way pipe 302 is connected to the upper annular pipe 305, which is connected to the inside of the vessel body 1. The upper annular pipe 305 is located above the material blocking plate 103. The other end of the three-way pipe 302 is connected to the lower annular pipe 305b, which is connected to the inside of the vessel body 1. The lower annular pipe 305b is located below the material blocking plate 103. There are connecting nozzles 305a on the inner walls of the upper annular pipe 305 and the lower annular pipe 305b.

[0043] Furthermore, there are two sets of nozzles 305a, and each set of nozzles 305a is arranged in a ring array.

[0044] The operation process of this embodiment is as follows: the fan 301 and the heating wire 303d are started. The external gas enters the interior of the gas collection box 303 after being filtered by the filter plate 303b and heated by the heating wire 303d. The heated gas enters the interior of the upper annular pipe 305 and the lower annular pipe 305b after passing through the connecting pipe 304, the fan 301 and the three-way pipe 302. Then the hot gas is sprayed into the interior of the reactor body 1 through the nozzle 305a to heat and dry the recycled polyester particles above and below the baffle plate 103.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A stirred tank for producing recycled polyester granules, comprising a tank body (1), characterized in that: A stirring assembly (2) is provided above the vessel body (1). The stirring assembly (2) includes a vessel cover (201) provided on the vessel body (1). A motor (202) is connected to the middle of the upper surface of the vessel cover (201). The output end of the motor (202) is connected to a vertically connected rotating shaft (202a). A stirring rod (205a) is connected to the circumferential side of the rotating shaft (202a). A stirring shaft (205) is symmetrically rotated and connected to the lower surface of the vessel cover (201). The lower ends of the rotating shaft (202a) and the stirring shaft (205) both penetrate the vessel cover (201). A driven gear (203a) is meshed with the side of the main gear (203) sleeved on the upper circumferential side of the rotating shaft (202a). The driven gear (203a) is sleeved on the upper circumferential side of the stirring shaft (205). A cleaning brush (206) is connected to the lower end of the rotating shaft (202a). The outer wall of the vessel body (1) is provided with a heating component (3). The heating component (3) includes a fan (301) connected to the outer wall of the vessel body (1). The air outlet of the fan (301) is connected to a three-way pipe (302). The upper annular pipe (305) and the lower annular pipe (305b) connected to the other two ends of the three-way pipe (302) are symmetrically connected to the inner circumferential side of the vessel body (1). The air inlet of the fan (301) is connected to a connecting pipe (304). The inner sides of the upper annular pipe (305) and the lower annular pipe (305b) are connected to nozzles (305a) in a ring array.

2. The stirred tank for producing recycled polyester granules according to claim 1, characterized in that: The lower surface of the vessel body (1) is connected to the outer wall of the discharge hopper (102), which has a valve connected thereto. The outer wall of the discharge hopper (102) has legs (101) connected in a ring array.

3. The stirred tank for producing recycled polyester granules according to claim 1, characterized in that: The inner circumferential side of the vessel body (1) has a material blocking plate (103) with a circular array of material dropping holes (103a), and the two upper annular tubes (305) and the lower annular tube (305b) are symmetrically arranged with the material blocking plate (103) as the fixed point.

4. The stirred tank for producing recycled polyester granules according to claim 1, characterized in that: The screws (204) connected in a ring array on the upper part of the outer side wall of the vessel body (1) have an L-shaped structure, and the abutment (204a) connected to the vertical section of the screws (204) is placed on the vessel cover (201).

5. The stirred tank for producing recycled polyester granules according to claim 4, characterized in that: The vessel lid (201) has a connected feed hopper (201a), and the outer wall of the exhaust pipe (201b) connected to the vessel lid (201) has a connected pneumatic valve.

6. The stirred tank for producing recycled polyester granules according to claim 1, characterized in that: The lower end of the connecting pipe (304) is connected to the gas-gathering box (303), and the gas-gathering box (303) is connected to the support leg (101).

7. The stirred tank for producing recycled polyester granules according to claim 6, characterized in that: The gas-gathering box (303) has a detachable cover (303a) on its side wall, and a filter plate (303b) is embedded in the lower part of the side wall of the cover (303a).

8. The stirred tank for producing recycled polyester granules according to claim 7, characterized in that: The gas-gathering box (303) has an internally connected mounting frame (303c) with equidistantly distributed heating wires (303d), and the heating wires (303d) are located above the filter plate (303b).

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