Vacuum cooling system for feed cooking

Abstract

The utility model relates to a vacuum cooling system for feed cooking, which comprises a vacuum unit used for cooling cooked feed in vacuum; the vacuum unit comprises a vacuum machine box and a vacuum pipe, and the vacuum machine box is used for vacuumizing and cooling. A vacuum pump set and a main vacuum pipe are installed in the vacuum machine box, the vacuum pump set is used for vacuumizing and cooling and connected with the main vacuum pipe, and the main vacuum pipe is connected with the vacuum pipe. The vacuum pump set comprises a water ring pump and a roots pump which are connected, the water ring pump serves as a first-stage pump, and the roots pump serves as a second-stage pump. The vacuum cooling unit is composed of the vacuum machine box and the vacuum pipe and can be directly connected with the stirring machine, the aim of directly conducting vacuum cooling on cooked feed is achieved, independent vacuum cooling equipment does not need to be arranged, the equipment cost is reduced, and the factory space is saved.

Description

Technical Field

[0001] The utility model belongs to the field of factory silkworm feed production, and in particular relates to a vacuum cooling system for feed cooking. Background Art

[0002] The traditional way of raising silkworms is to raise them in a small family workshop. It is a fully artificial silkworm raising method. From silkworm eggs to cocoons, it is all done manually. It is time-consuming and labor-intensive, and the breeding efficiency is very low. In addition, due to seasonal conditions, silkworms can only be raised at specific times. The annual output of silkworm cocoons is extremely low, which cannot meet the needs of today's society and has been gradually eliminated by society. In order to make up for the shortcomings of traditional workshop-style silkworm raising, large-scale and factory-based silkworm raising technology has been applied. In large-scale breeding technology, if mulberry leaves are used as feed, it is completely impossible to meet the requirements of factory-based silkworm raising. Therefore, artificial feed plays an important role in factory-based and large-scale silkworm raising technology.

[0003] The artificial feed production process includes three steps: raw material processing, cooking and feed cooling. The raw material processing step is to mix the raw materials after crushing and other treatments to obtain dry powder. The cooking step is to mix the dry powder with water and stir to obtain raw material, and then the raw material is steamed and cooked to obtain feed. Finally, the feed is cooled after cooking through the feed cooling step.

[0004] Feed cooling mostly adopts vacuum cooling method, which has fast and uniform cooling speed, stable cooling operation and low cooling energy consumption; existing vacuum cooling systems are mostly large box structures, which use vacuum pump units to evacuate the box, thereby vacuum cooling the feed in the box; this type of vacuum cooling system is an independent equipment, with high equipment cost, large floor space, and the feed needs to be transported into the box for vacuum cooling, which has many inconveniences. Utility Model Content

[0005] The purpose of the utility model is to provide a vacuum cooling system for feed cooking. In view of the defects in the prior art, the vacuum cooling unit is designed, which consists of a vacuum chassis and a vacuum tube. It can be directly connected to a mixer to achieve the purpose of directly vacuum cooling the cooked feed. There is no need to equip independent vacuum cooling equipment, which reduces equipment costs and saves plant space.

[0006] In order to solve the above technical problems, the following technical solutions are adopted:

[0007] A vacuum cooling system for feed cooking, characterized in that it comprises a vacuum unit for vacuum cooling the cooked feed; the vacuum unit comprises a vacuum chassis and a vacuum tube, and the vacuum chassis is used for vacuum cooling.

[0008] Furthermore, a vacuum pump group and a main vacuum tube are installed in the vacuum chassis. The vacuum pump group is used for vacuum cooling and is connected to the main vacuum tube, and the main vacuum tube is connected to the vacuum tube.

[0009] Furthermore, the vacuum pump group includes a water ring pump and a Roots pump which are connected to each other, the water ring pump serves as a primary pump, and the Roots pump serves as a secondary pump.

[0010] Furthermore, the water ring pump is connected to a water supply pipeline, which supplies water to the water ring pump, which can not only extract gas but also reduce the temperature of the vacuum pump group, thereby ensuring the stability of the operation of the vacuum pump group and increasing its durability.

[0011] Furthermore, the water supply pipeline is connected to a filter, a solenoid valve, a water flow switch and a first manual ball valve. The filter is used to filter water, the solenoid valve is used to open or close the water supply pipeline, the water flow switch is used to detect and control water flow, and the manual ball valve is used to open or close the water supply pipeline, and can adjust the water flow and control the pressure in the pipeline.

[0012] Furthermore, two or more vacuum pump groups are provided.

[0013] Furthermore, the water ring pump is connected with a steam-water separation pipe, the steam-water separation pipe is connected with a steam-water separator, and the steam-water separator is connected with an exhaust pipe and a drain pipe.

[0014] Furthermore, a liquid blocker is connected between the Roots pump and the water ring pump, and the liquid blocker can prevent liquid back suction and improve the safety of the vacuum pump group operation.

[0015] Furthermore, the main vacuum pipe is connected with a filter muffler to reduce the noise generated by the operation of the vacuum pump group.

[0016] Furthermore, a second manual ball valve and a pneumatic ball valve are connected between the main vacuum pipe and the filter muffler.

[0017] The above technical solution has the following beneficial effects:

[0018] The vacuum cooling unit of the utility model consists of a vacuum case and a vacuum tube, which can be directly connected to a mixer to achieve the purpose of directly vacuum cooling the steamed feed. There is no need to equip independent vacuum cooling equipment, thus reducing equipment costs and saving plant space.

[0019] By supplying water to the water ring pump with the help of the water supply pipeline, not only can the gas be extracted, but also the temperature of the vacuum pump group can be reduced, thereby ensuring the stability of the operation of the vacuum pump group and increasing its durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the entire mixer;

[0022] Figure 2 It is a schematic diagram of the structure inside the mixing box;

[0023] Figure 3 It is a structural schematic diagram of the feed port;

[0024] Figure 4 It is a structural schematic diagram of the discharge port;

[0025] Figure 5 It is a structural diagram of the steam system;

[0026] Figure 6 It is a schematic diagram of the structure of the internal components of the vacuum box;

[0027] Figure 7 is a schematic diagram of the structure of the curved rod;

[0028] Figure 8 It is a schematic diagram of the structure of the water supply pipeline;

[0029] Fig. 9 This is a connection diagram of the filter silencer.

[0030] The accompanying drawings are marked as follows: body 1, motor box 11, stirring box 2, stirring motor group 21, stirring shaft 22, stirring blade 23, feed port 3, feed cover 4, feed opening and closing assembly 41, feed cylinder 411, feed opening and closing rod 412, feed cylinder seat 413, feed opening and closing rod seat 414, air valve group 42, air pipeline 421, charging valve 422, exhaust valve 423, discharge cover 5, discharge opening and closing assembly 51, discharge cylinder 511, discharge cylinder seat 512, connecting rod 513, curved rod 514, crank 5141, double-headed hinged rod 5142, crank hole 5143, discharge opening and closing rod 515, guide rod seat 516, guide rod 51 7, guide plate 52, steam system 6, stop valve 61, filter 62, first flange pipe 63, flow meter 64, second flange pipe 65, regulating valve 66, angle seat valve 661, air inlet pipe 67, shunt pipe 68, diversion branch pipe 69, nozzle 691, vacuum chassis 7, water supply pipe 71, filter 711, solenoid valve 712, water flow switch 713, first manual ball valve 714, water ring pump 72, Roots pump 73, main vacuum pipe 74, liquid blocker 741, pneumatic ball valve 742, second manual ball valve 743, steam-water separation pipe 75, steam-water separator 76, exhaust pipe 77, drain pipe 78, liquid blocker 79, vacuum pipe 8. DETAILED DESCRIPTION

[0031] The utility model aims to provide a vacuum cooling system for feed cooking. The vacuum cooling unit consists of a vacuum chassis and a vacuum tube, which can be directly connected to a mixer to achieve the purpose of directly vacuum cooling the cooked feed. There is no need to equip independent vacuum cooling equipment, which reduces equipment costs and saves plant space.

[0032] The technical solution of the utility model is described in detail below in conjunction with specific embodiments:

[0033] The vacuum cooling system includes a vacuum unit, which is external to the mixer and includes a vacuum case 7 and a vacuum tube 8. The vacuum tube 8 is connected to the mixer. The vacuum case 7 evacuates the mixer through the vacuum tube 8 to achieve the purpose of vacuum cooling. A water supply pipeline 71, a water ring pump 72, a Roots pump 73 and a main vacuum tube 74 are installed in the vacuum case 7. The water supply pipeline 71 is connected to the water ring pump 72. There are two water ring pumps 72. The water supply pipeline 71 supplies water to the two water ring pumps 72. There are two Roots pumps 73. Each water ring pump 72 is connected to a corresponding Roots pump 73. The Roots pump 73 is connected to the main vacuum tube 74. The main vacuum tube 74 is connected to the vacuum tube 8. The water supply pipeline 71 supplies water to the water ring pump 72. The water ring pump 72 is a front-stage vacuum pump, and cooperates with the Roots pump 73 to achieve vacuum cooling of the mixing box 2. The vacuum cooling process is as follows: 1. The water supply pipe 71 supplies water to the water ring pump 72, and the water ring pump 72 starts; 2. The vacuum degree in the mixing box 2 begins to decrease; 3. When the vacuum degree in the mixer is 80 mbar, the Roots pump 73 starts; 4. Until the vacuum degree in the mixing box 2 drops to about 30 mbar, the water ring pump 72 and the Roots pump 73 stop running.

[0034] The water ring pump 72 is connected with a steam-water separation pipe 75, the steam-water separation pipe 75 is connected with a steam-water separator 76, and the steam-water separator 76 is connected with an exhaust pipe 77 and a drain pipe 78, so as to achieve the purpose of steam-water separation.

[0035] The water supply pipe 71 is used to supply water to the water ring pump 72, which can not only extract gas, but also reduce the temperature of the vacuum pump group, ensure the stability of the operation of the vacuum pump group, and increase the durability. The water supply pipe 71 is connected with a filter 711, a solenoid valve 712, a water flow switch 713 and a first manual ball valve 714. The filter 711 is used to filter water, the solenoid valve 712 is used to open or close the water supply pipe 71, the water flow switch 713 is used for water flow detection and control, and the first manual ball valve 714 is used to open or close the water supply pipe 71, and can adjust the water flow and control the pressure in the pipe.

[0036] A liquid blocker 79 is connected between the Roots pump 73 and the water ring pump 72. The liquid blocker 79 can prevent liquid from being sucked back, thereby improving the safety of the vacuum pump group operation.

[0037] The main vacuum pipe 74 is connected to a branch pipe, and the branch pipe is sequentially connected to a second manual ball valve 743, a pneumatic ball valve 742 and a filter muffler 741. The filter muffler 741 reduces the noise generated by the vacuum pump group during operation.

[0038] The mixer connected to the vacuum unit includes a body 1 and a mixing box 2. The mixing box 2 includes a feed port 3, a discharge port (not shown in the figure) and a mixing component. The powder is put into the mixing box 2 through the feed port 3, and the raw material is obtained after being mixed and stirred by the mixing component. During the mixing process, steam is introduced into the mixing box 2 through the steam system 6 to heat and cook the raw material. Finally, the feed is obtained after vacuum cooling by the vacuum unit, and the feed is sent out from the discharge port. The mixing-cooking and vacuum cooling are integrated to avoid the raw material conveying process and improve the cooking production efficiency; at the same time, the cooking and cooling equipment is reduced, the equipment cost is reduced, and the economic benefits of factory silkworm breeding are indirectly improved.

[0039] like Figure 3 As shown, the feed port 3 is installed at the upper end of the mixing box 2, and its shape is rectangular, which is convenient for adding powder into the mixing box 2; a feed cover 4 is installed at the feed port 3, the shape of the feed cover 4 matches the feed port 3, and the feed cover 4 is controlled to be opened or closed by a feed opening and closing component 41. Specifically, the feed opening and closing component 41 includes a feed cylinder 411 and a feed opening and closing rod 412, the tail of the feed cylinder 411 is hinged to the feed cylinder seat 413, and the feed cylinder seat 413 is installed on the shell of the mixing box 2, so that the feed cylinder 411 The piston rod at the head of the feed cylinder 411 is hinged with the feed opening and closing rod 412, so that the feed cylinder 411 can rotate relative to the feed opening and closing rod 412; the feed opening and closing rod 412 is L-shaped, fixed to the feed cover 4, and matches the shape of the feed cover 4. A feed opening and closing rod seat 414 is fixedly installed at the feed port 3, and the feed opening and closing rod 412 is hinged to the feed opening and closing rod seat 414, so that the feed opening and closing rod 412 can rotate relative to the feed opening and closing rod seat 414 during the opening or closing process of the feed cover 4. Based on the feed opening and closing assembly 41, the feed cover 4 can be controlled to open or close automatically, which is convenient for adding powder, without manual operation, and can realize automated operation procedures, thereby improving safety and work efficiency.

[0040] A breathable valve group 42 is installed at the feed port 3. The breathable valve group 42 includes a breathable pipeline 421 and an air charging valve 422 and an exhaust valve 423 connected to the breathable pipeline 421. The breathable pipeline 421 is connected to the inner cavity of the mixing box 2. The exhaust valve 423 is used to exhaust air to the mixing box 2. During the steam heating process, as the steam is gradually released, excess steam will inevitably be generated. The exhaust valve 423 can be used to discharge the excess steam in the mixing box 2 to maintain the balance in the mixing box 2. The air charging valve 422 is used to inflate the mixing box 2. After vacuum cooling, since the mixing box 2 is in a vacuum state, in order to restore it to a normal pressure state, air is added to the mixing box 2 through the air charging valve 422 to make the pressure in the box reach normal pressure.

[0041] The stirring assembly is installed in the stirring box 2, and two groups are provided. Each stirring assembly includes a stirring motor group 21, a stirring shaft 22 and a stirring blade 23. The stirring motor group 21 is installed externally in the motor box 11. The stirring motor group 21 is connected to and drives the stirring shaft 22 to rotate. The stirring blade 23 is regularly arranged on the stirring shaft 22. The stirring blade 23 consists of a connecting rod and a blade. The stirring and mixing effect is achieved by the blade sweeping. The two stirring assemblies cooperate with each other to improve the stirring effect.

[0042] A discharge port is installed on one side of the mixing box 2, and there are two of them, which correspond to the two mixing components one by one. A discharge cover 5 is installed at the discharge port, and the discharge cover 5 is opened or closed by a discharge opening and closing component 51. The discharge opening and closing component 51 includes a discharge cylinder 511 and a discharge opening and closing rod 515. The tail of the discharge cylinder 511 is hinged to the discharge cylinder seat 512, and the discharge cylinder seat 512 is fixed to the surface of the mixing box 2, so that the discharge cylinder 511 can rotate; the piston rod at the head of the discharge cylinder 511 is hinged to a connecting rod 513, and the other end of the connecting rod 513 is hinged to a crank 5141 of a crank rod 514; a crank hole 5143 is provided at the upper end of the crank 5141, and a guide rod 517 is hinged through the crank hole 5143, and the guide rod 517 is installed on the guide rod seats 516 at both ends, and the guide rod seats 516 are fixed to the surface of the mixing box 2. The lower end of the crank 5141 is hinged to the upper hinged end of the double-headed hinged rod 5142, and the lower hinged end of the double-headed hinged rod 5142 is hinged to the discharge opening and closing rod 515. The discharge opening and closing rod 515 is fixed to the discharge cover 5, and its tail end is hinged to the discharge opening and closing rod seat (not shown in the figure). Based on the above transmission parts, the linear motion of the discharge cylinder 511 is converted into a rotational motion to open or close the discharge cover 5. Based on the discharge opening and closing assembly 51, the discharge cover 5 can be controlled to open or close automatically. After the steaming and cooling are completed, it is convenient to send out the feed without manual operation, and an automated operation process can be realized to improve safety and work efficiency.

[0043] A guide plate 52 is also provided below the discharge port. The guide plate 52 is arranged to be tilted downward so as to collect the feed in a directional manner into the feed barrel.

[0044] The steam system 6 includes a steam control pipeline and a steam pipeline. The steam control pipeline is connected to the steam pipeline, and the steam pipeline is connected to the mixing box 2. The steam control pipeline is used to control whether steam is introduced and adjust the flow rate of the introduced steam. The steam pipeline is used to transport steam into the mixing box 2. The steam control pipeline is sequentially provided with a stop valve 61, a filter 62, a first flange pipeline 63, a flow meter 64, a second flange pipeline 65 and a regulating valve 66 from the outside to the inside. The stop valve 61 is connected to the steam supply pipeline, which is used to open and close the pipeline to achieve the purpose of controlling whether steam is introduced. The inside of the stop valve 61 is connected to a filter 62, which is a U-shaped filter 62 for filtering foreign matter in the steam; the filter 62 is connected to the first flange pipeline 63, and the flow meter 64 is connected between the first flange pipeline 63 and the second flange pipeline 65. The flow meter 64 is a vortex flowmeter 64, which is used to detect the steam flow in real time, so as to facilitate the staff to adjust the appropriate steam flow according to the actual working conditions. The first flange pipeline 63 and the second flange pipeline 65 are used to improve the air tightness of the steam control pipeline to avoid the problem of steam leakage. The second flange pipeline 65 is connected to the regulating valve 66, which is a pneumatic diaphragm regulating valve 66 for regulating the steam flow. The pneumatic diaphragm regulating valve 66 is connected to an angle seat valve 661, which is a pneumatic angle seat valve 661 to assist the pneumatic diaphragm regulating valve 66 to achieve accurate and stable flow control.

[0045] The pneumatic angle seat valve 661 is connected to the steam pipeline, which includes an air inlet pipe 67, a shunt pipe 68 and a diversion branch pipe 69. The outer end of the air inlet pipe 67 is connected to the pneumatic angle seat valve 661, and the inner end is connected to two shunt pipes 68. The two shunt pipes 68 are connected to diversion branch pipes 69. The diversion branch pipes 69 are arranged in groups of two, and there are 5 groups. The two diversion branch pipes 69 in the same group are bifurcated at a certain angle. The end of each diversion branch pipe 69 is connected to a nozzle 691, which is placed in the mixing box 2 and does not contact the mixing blades 23. Steam is transported from bottom to top to various positions in the mixing box 2 through the steam pipeline to achieve steam heating and cooking of the raw material. The steam will flow through the inside of the raw material, and the heating and cooking effect is excellent, and the cooking is uniform and thorough.

[0046] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A vacuum cooling system for feed cooking, characterized in that: It comprises a vacuum unit for vacuum cooling the cooked feed; the vacuum unit comprises a vacuum box and a vacuum tube, and the vacuum box is used for vacuum cooling.

2. A vacuum cooling system for feed cooking according to claim 1, characterized in that: A vacuum pump group and a main vacuum tube are installed in the vacuum box. The vacuum pump group is used for vacuuming and cooling, and is connected to the main vacuum tube. The main vacuum tube is connected to the vacuum tube.

3. A vacuum cooling system for feed cooking according to claim 2, characterized in that: The vacuum pump group comprises a water ring pump and a Roots pump which are connected to each other, wherein the water ring pump serves as a primary pump and the Roots pump serves as a secondary pump.

4. A vacuum cooling system for feed cooking according to claim 3, characterized in that: The water ring pump is connected with a water supply pipeline.

5. A vacuum cooling system for feed cooking according to claim 4, characterized in that: The water supply pipeline is connected with a filter, a solenoid valve, a water flow switch and a first manual ball valve.

6. A vacuum cooling system for feed cooking according to claim 3, characterized in that: The vacuum pump groups are provided in two or more groups.

7. A vacuum cooling system for feed cooking according to claim 3, characterized in that: The water ring pump is connected with a steam-water separation pipe, the steam-water separation pipe is connected with a steam-water separator, and the steam-water separator is connected with an exhaust pipe and a drain pipe.

8. The vacuum cooling system for feed cooking according to claim 3, characterized in that: A liquid blocker is connected between the Roots pump and the water ring pump.

9. A vacuum cooling system for feed cooking according to claim 2, characterized in that: The main vacuum pipe is connected with a filter muffler.

10. A vacuum cooling system for feed cooking according to claim 9, characterized in that: A second manual ball valve and a pneumatic ball valve are connected between the main vacuum pipe and the filter muffler.

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