High-viscosity material feeding device and reaction equipment
By using a combination technology of a screw push plate and a return pipe in the high-viscosity material feeding device, the problem of difficult to quickly heat up and discharge the high-viscosity materials in the prior art is solved, and the rapid heating and discharge of the materials are achieved, and the feeding efficiency is improved.
Patent Information
- Application Number
- CN202421815450.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The prior art is difficult to quickly heat up and discharge high viscosity materials in a short period of time, resulting in a long heating time and slow discharge speed.
A high viscosity material feeding device including a tank body, a first jacket, a push pipe, a rotating rod, a screw push plate and a return pipe is adopted. The combination of the screw push plate and a return pipe is used to achieve rapid heating and discharge of the material.
It realizes rapid heating and discharge of high-viscosity materials in a shorter time, reduces viscosity and improves feeding efficiency.
Smart Images
Figure CN222842119U_ABST
Abstract
Description
Technical Field
[0001] The utility model specifically relates to a feeding device and reaction equipment for high-viscosity materials. Background Art
[0002] Polyphosphoric acid is made by heating phosphoric acid for dehydration condensation, or by adding phosphorus pentoxide to pure water and then heating for condensation. It is a colorless, transparent syrup-like substance at room temperature, a solid glass-like substance at low temperatures, and becomes fluid when heated to 50-60°C.
[0003] Polyphosphoric acid is an important chemical raw material, such as a reaction raw material for phosphate compounds. However, it is very difficult to feed polyphosphoric acid because it is syrupy (high viscosity) or solid at room temperature or low temperature and has fluidity at high temperature.
[0004] The traditional feeding method of polyphosphoric acid is to add polyphosphoric acid into a stirred tank with jacket heating, and heat the polyphosphoric acid to increase its temperature, making it fluid, and then add the material. However, jacket heating can usually only heat the side wall of the tank, so that the material is heated on the periphery and the internal heating is uneven. The viscosity of polyphosphoric acid is too high, and the polyphosphoric acid in the entire tank is difficult to mix quickly and evenly, resulting in a slow overall heating speed of the material in the tank, a long heating time, and a slow discharge speed due to the high viscosity of the material. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a feeding device for high-viscosity materials which can heat up the materials in a shorter time and can discharge the materials quickly in view of the deficiencies in the prior art.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A feeding device for high-viscosity materials, comprising a tank body, a first jacket sleeved on the outside of the tank body, and a driving mechanism, the feeding device further comprising a pushing tube arranged at the bottom of the tank body, a rotating rod arranged in the tank body and connected to the driving mechanism at the upper end thereof, and a spiral pushing plate arranged on the outside of the rotating rod along the length direction of the rotating rod, the upper end of the spiral pushing plate being located in the tank body and the lower end thereof extending into the pushing tube;
[0008] The feeding device also includes a return pipe with one end connected to the pushing pipe and the other end connected to the tank body.
[0009] In some embodiments, the connection between the reflux pipe and the pusher pipe is located below the spiral push plate.
[0010] In some specific embodiments, a first valve is disposed on the reflux pipe.
[0011] In some specific embodiments, the diameter of the reflux pipe is smaller than the diameter of the pusher pipe.
[0012] In some specific embodiments, the first jacket is provided with a first inlet for heat medium to enter and a first outlet for heat medium to exit, respectively, and the first inlet is located below the first outlet.
[0013] In some specific embodiments, the outer side of the push tube is provided with a second jacket, and the second jacket is provided with a second inlet for heat medium to enter and a second outlet for heat medium to exit, respectively, and the second inlet is located below the second outlet.
[0014] In some embodiments, the feeding device further includes a discharge pipe connected to the lower end of the push pipe, and a second valve is provided on the discharge pipe.
[0015] In some specific embodiments, the diameter of the discharge pipe is smaller than the diameter of the push pipe.
[0016] In some specific embodiments, the lower portion of the push tube forms a trumpet-shaped mouth portion whose cross-sectional area gradually decreases from top to bottom, and the discharge tube is connected to the trumpet-shaped mouth portion.
[0017] In some specific embodiments, a bracket for supporting the rotating rod is provided in the pushing tube, the lower end of the rotating rod is inserted into the bracket and is rotatably arranged with the bracket, and the bracket is a hollow bracket and will not hinder the flow of materials in the pushing tube.
[0018] In some specific embodiments, the driving mechanism is a motor disposed on the top of the tank.
[0019] In some specific embodiments, the feeding device further includes a temperature sensor disposed on the tank body and used to monitor the temperature of the material in the tank body.
[0020] The second technical solution adopted by the utility model is: a reaction equipment, including a reaction kettle and a feeding device, and the feeding device is the feeding device for the high-viscosity material mentioned above.
[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0022] The feeding device of the utility model is very suitable for feeding high-viscosity materials. Through the action of the spiral push plate combined with the reflux pipe, the high-viscosity materials can be quickly heated up in the tank body, and the viscosity is reduced, which is convenient for feeding. At the same time, under the action of the spiral push plate, the material with reduced viscosity can be quickly discharged. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic structural diagram of a feeding device for high-viscosity materials according to a representative embodiment of the utility model;
[0024] In the figure: 1, tank body; 2, motor; 3, rotating rod; 4, spiral push plate; 5, first jacket; 6, push pipe; 6a, trumpet-shaped mouth; 7, reflux pipe; 8, first valve; 9, second jacket; 10, first inlet; 11, first outlet; 12, bracket; 13, temperature sensor; 14, second inlet; 15, second outlet; 16, discharge pipe; 17, second valve. DETAILED DESCRIPTION
[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:
[0026] like Figure 1 The feeding device for high-viscosity materials shown in the figure comprises a tank body 1, a first jacket 5 sleeved on the outside of the tank body 1, a rotating rod 3 arranged in the tank body 1, a spiral push plate 4 arranged on the outside of the rotating rod 3 along the length direction of the rotating rod 3, a pushing pipe 6 arranged at the bottom of the tank body 1, and a driving mechanism connected to the upper end of the rotating rod 3 and used to drive the rotating rod 3 to rotate, and the driving mechanism is a motor 2 arranged on the top of the tank body 1.
[0027] The upper end of the spiral push rod 4 is located in the tank body 1, and the lower end extends into the push tube 6. The feeding device also includes a return pipe 7 with one end connected to the push tube 6 and the other end connected to the middle of the tank body 1. Specifically, the connection between the return pipe 7 and the push tube 6 is located below the spiral push plate 4, and the diameter of the return pipe 7 is smaller than the diameter of the push tube 6.
[0028] The first jacket 5 is provided with a first inlet 10 for heat medium to enter and a first outlet 11 for heat medium to exit. The first inlet 10 is located below the first outlet 11 .
[0029] When the heat medium is passed into the first jacket 5 to heat the high-viscosity material in the tank body 1, the motor 2 drives the rotating rod 3 to rotate, driving the spiral push plate 4 to rotate. During the rotation of the spiral push plate 4, the material in the middle of the tank body 1 can be pushed into the push pipe 6, and then refluxed to the tank body 1 through the reflux pipe 7. In this way, the material in the middle of the tank body 1 can be transported to the periphery to replace the heated material in the periphery. The cycle is repeated, and the material in the entire tank body 1 can be quickly heated up with a short heating time. When used for polyphosphoric acid, the viscosity of the polyphosphoric acid can be quickly reduced, which is convenient for smooth discharge.
[0030] For better heat preservation, the outer side of the push tube 6 is provided with a second jacket 9 , and the second jacket 9 is provided with a second inlet 14 for heat medium to enter and a second outlet 15 for heat medium to exit. The second inlet 14 is located below the second outlet 15 .
[0031] The feeding device also includes a discharge pipe 16 connected to the lower end of the push pipe 6. The diameter of the discharge pipe 16 is smaller than the diameter of the push pipe 6, and the lower part of the push pipe 6 forms a trumpet-shaped mouth 6a whose cross-sectional area gradually decreases from top to bottom. The discharge pipe 16 is connected to the trumpet-shaped mouth 6a. When discharging, on the one hand, the material is squeezed toward the discharge pipe 16 through the rotation of the spiral push plate 4. On the other hand, the setting of the trumpet-shaped mouth 6a also helps to discharge the material, thereby realizing rapid discharging. In addition, the diameter of the discharge pipe 16 is smaller than that of the push pipe 6, and the discharging is precise and controllable.
[0032] A first valve 8 is provided on the reflux pipe 7 near the tank body 1, and a second valve 17 is provided on the discharge pipe 16. When heating the material in the tank body 1, the first valve 8 is opened and the second valve 17 is closed; when discharging, the first valve 8 is closed and the second valve 17 is opened.
[0033] In order to make the rotating rod 3 run more stably, a bracket 12 for supporting the rotating rod 3 is arranged in the pushing tube 6. The bracket 12 is located below the spiral pushing plate 4. The lower end of the rotating rod 3 is inserted on the bracket 12 and is rotatably arranged with the bracket 12. The bracket 12 is a hollow bracket. The arrangement of the bracket 12 will not hinder the flow of materials in the pushing tube 6.
[0034] The feeding device further comprises a temperature sensor 13 which is arranged on the tank body 1 and is used to monitor the temperature of the material in the tank body 1 .
[0035] The feeding device is applied to high viscosity materials, such as polyphosphoric acid feeding applications:
[0036] When in use, the feeding device is installed on the reactor, the discharge pipe 16 of the feeding device is connected to the feeding port of the reactor, the first valve 8 is opened, the second valve 17 is closed, the polyphosphoric acid is put into the tank body 1, the heat medium is respectively passed into the first jacket 5 and the second jacket 9, the tank body 1 and the push pipe 6 are heated, the polyphosphoric acid on the periphery is heated, the motor 2 drives the rotating rod 3 to rotate, the spiral push plate 4 pushes the polyphosphoric acid in the middle of the tank body 1 toward the push pipe 6, and then refluxes to the periphery of the tank body 1 through the reflux pipe 7, and in this cycle, the polyphosphoric acid in the tank body 1 can be heated very quickly, the viscosity can be quickly reduced, and it is convenient for feeding.
[0037] When feeding into the reactor, the first valve 8 is closed, the second valve 17 is opened, and the polyphosphoric acid flows to the discharge pipe 16 and then enters the reactor, completing the feeding. Under the action of the spiral push plate 4, the feeding can be done quickly.
[0038] The feeding device can not only be used to quickly heat up and reduce the viscosity of high-viscosity materials, but also can feed materials efficiently and accurately. It can also be applied to some materials with high melting points and feed them after they are heated into liquid materials.
[0039] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A feeding device for high-viscosity materials, comprising a tank body, a first jacket sleeved outside the tank body, and a driving mechanism, characterized in that: The feeding device also includes a pushing tube arranged at the bottom of the tank body, a rotating rod arranged in the tank body and connected to the driving mechanism at the upper end thereof, and a spiral pushing plate arranged outside the rotating rod along the length direction of the rotating rod, wherein the upper end of the spiral pushing plate is located in the tank body and the lower end thereof extends into the pushing tube; The feeding device also includes a return pipe with one end connected to the pushing pipe and the other end connected to the tank body.
2. The feeding device for high-viscosity materials according to claim 1, characterized in that: The connection point between the reflux pipe and the pushing pipe is located below the spiral pushing plate.
3. The feeding device for high-viscosity materials according to claim 1 or 2, characterized in that: The reflux pipe is provided with a first valve.
4. The feeding device for high-viscosity materials according to claim 1 or 2, characterized in that: The diameter of the reflux pipe is smaller than the diameter of the push pipe.
5. The feeding device for high-viscosity materials according to claim 1, characterized in that: The first jacket is provided with a first inlet for heat medium to enter and a first outlet for heat medium to exit, respectively. The first inlet is located below the first outlet.
6. The feeding device for high-viscosity materials according to claim 1, characterized in that: The outer side of the push tube is provided with a second jacket, and the second jacket is provided with a second inlet for heat medium to enter and a second outlet for heat medium to exit, respectively. The second inlet is located below the second outlet.
7. The feeding device for high-viscosity materials according to claim 1, characterized in that: The feeding device also includes a discharge pipe connected to the lower end of the push pipe, and a second valve is arranged on the discharge pipe.
8. The feeding device for high-viscosity materials according to claim 7, characterized in that: The diameter of the discharge pipe is smaller than the diameter of the push pipe.
9. The feeding device for high-viscosity materials according to claim 8, characterized in that: The lower part of the pushing tube forms a trumpet-shaped mouth portion whose cross-sectional area gradually decreases from top to bottom, and the discharging tube is connected to the trumpet-shaped mouth portion.
10. The feeding device for high-viscosity materials according to claim 1, characterized in that: A bracket for supporting the rotating rod is arranged in the pushing tube, and the lower end of the rotating rod is inserted into the bracket and is rotatably arranged with the bracket.
11. The feeding device for high-viscosity materials according to claim 1, characterized in that: The driving mechanism is a motor arranged on the top of the tank body.
12. The feeding device for high-viscosity materials according to claim 1, characterized in that: The feeding device also includes a temperature sensor disposed on the tank body and used for monitoring the temperature of the material in the tank body.
13. A reaction device, comprising a reaction kettle and a feeding device, characterized in that: The feeding device is a feeding device for high-viscosity materials according to any one of claims 1 to 12.