Corn protein powder processing waste heat recovery system

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a corn protein powder processing waste heat recovery system which comprises a water tank, the upper end and the lower end of the water tank are divided into two air cavities through a partition plate, a heating pipe is fixedly connected between the two air cavities, and a flow adjusting assembly is arranged between the upper end and the lower end of the water tank. A cleaning assembly is arranged in the middle of the water tank, and a lower butt joint pipe is welded to the bottom of the flow adjusting assembly. The flow adjusting assembly comprises a heating cavity fixedly connected to the bottom end of the water tank, a helium tank is fixedly connected to the interior of the heating cavity, one end of the helium tank communicates with the flow adjusting cavity through a connecting pipe, and a piston block is slidably connected to the interior of the flow adjusting cavity. According to the improved waste heat recovery system, the air inflow is adjusted in a self-adaptive mode through the flow adjusting assembly, high-efficiency recovery of waste heat of waste gas is kept, the cleaning assembly drives the scraping plate to reciprocate up and down to scrape scale on the surface of the heating pipe, and the heat exchange efficiency of the heating pipe is prevented from being affected by scaling.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery system for corn protein powder processing. Background Technique

[0002] Corn protein powder is a high-protein powder obtained through the fine processing and treatment of corn. It has the characteristics of rich nutrition, easy digestion and absorption, and is widely used in the livestock industry, aquaculture industry and food processing industry. The production process of corn protein powder mainly includes dehydration, alkali treatment, protein slurry preparation, solid-liquid separation and drying. Among them, in the drying process, a boiler is required to boil and dry the corn slurry. The waste gas and wastewater generated by the boiler contain a large amount of waste heat, resulting in waste of resources. Therefore, we introduce a waste heat recovery system for corn protein powder processing.

[0003] The existing technology has the following problems: 1. When the existing waste heat recovery system is in use, it mainly uses the waste gas of the boiler in the heating pipe to flow through the heating pipe to heat the water body outside the heating pipe to recover and utilize the waste heat. However, in actual use, the waste heat in the waste gas will be affected by different fuels. Some fuels generate high heat, and at this time, there is more waste heat in the waste gas, resulting in the incomplete recovery of the heat in the waste gas after passing through the heating pipe, causing waste and low waste heat recovery utilization rate; 2. After the existing waste heat recovery system is used for a period of time, a thick layer of scale will form on the outer wall of its heating pipe due to being immersed in water for a long time, reducing the heat exchange efficiency of the heating pipe and resulting in a decline in the waste heat recovery effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waste heat recovery system for corn protein powder processing to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A waste heat recovery system for corn protein powder processing, including a water tank. The upper and lower ends of the water tank are separated by a partition to form two gas cavities. A heating pipe is fixedly connected between the two gas cavities. A flow regulating component is arranged between the upper and lower ends of the water tank. A cleaning component is arranged in the middle of the water tank. A lower docking pipe is welded to the bottom of the flow regulating component.

[0006] The flow regulating component includes a heating cavity fixedly connected to the bottom end of the water tank. A helium gas tank is fixedly connected inside the heating cavity. One end of the helium gas tank is communicated with a flow regulating cavity through a connecting pipe. A piston block is slidably connected inside the flow regulating cavity. A spring is fixedly connected to one side of the piston block.

[0007] Preferably, the bottom surface of the flow regulating cavity is communicated with the upper gas cavity of the water tank, and is fixedly connected between the inner wall of the flow regulating cavity and one end of the spring. The top surface of the flow regulating cavity is communicated with an upper docking pipe.

[0008] Preferably, the cleaning component includes a motor fixedly connected to one side of the flow regulating cavity through a mounting plate. The output end of the motor is fixedly connected with a gear, and a toothed ring is meshed with one side of the gear.

[0009] Preferably, a plurality of connecting rods are fixedly connected to the inner ring of the toothed ring, and the plurality of connecting rods are connected by a reciprocating lead screw. A fan blade is arranged at the top of the reciprocating lead screw.

[0010] Preferably, a scraper is arranged in the middle of the reciprocating lead screw. The scraper is located between the upper and lower partitions of the water tank, and the outer side of the scraper is attached to the inner wall of the water tank. The scraper is slidably connected with the heating pipe.

[0011] Preferably, two groups of T-shaped rings are arranged on the upper and lower surfaces of the toothed ring, and both groups of T-shaped rings are slidably connected to the inner wall of the upper docking pipe.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, by arranging the helium gas cylinder in the heating cavity, the waste heat in the waste gas after heat exchange can be used to heat the helium gas. The volume expansion of the helium gas will push the piston block to partially block the intake passage, thereby reducing the intake volume of the waste gas and avoiding waste caused by the inability to completely displace the waste heat in the waste gas due to excessive waste gas in the heating pipe. On the contrary, when the temperature of the waste gas after heat exchange decreases, it indicates that the waste heat in the heating pipe has been absorbed thoroughly enough. At this time, the temperature of the helium gas decreases and the volume shrinks. Under the action of the spring, the piston block resets, increasing the intake volume of the waste gas in the heating pipe and improving the heating speed of the water body in the water tank. This structure adaptively adjusts the intake volume and maintains high-efficiency recovery of the waste heat of the waste gas.

[0014] In the present utility model, the cleaning component drives the fan blade to rotate to suck the boiler waste gas into the heating pipe to heat the water body in the water tank, realizing the recovery and utilization of the waste heat of the waste gas. While the cleaning component drives the fan blade to rotate, it also drives the reciprocating lead screw to rotate, so that the scraper moves up and down reciprocally to scrape the scale on the surface of the heating pipe, preventing the scale from affecting the heat exchange efficiency of the heating pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the main perspective structural schematic diagram of the present utility model;

[0016] Figure 2 is the front sectional perspective structural schematic diagram of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 the enlarged structural schematic diagram at A in;

[0018] Figure 4This is a schematic perspective view of the left - view partial section of the utility model;

[0019] Figure 5 This is a schematic perspective view of the top - view of the scraping plate of the utility model.

[0020] In the figure: 1. Water tank; 2. Air chamber; 3. Heating pipe; 4. Flow - regulating assembly; 401. Heating chamber; 402. Helium tank; 403. Flow - regulating chamber; 404. Piston block; 405. Spring; 5. Cleaning assembly; 501. Motor; 502. Gear; 503. Tooth ring; 504. Connecting rod; 505. Reciprocating lead screw; 506. Fan blade; 507. Scraping plate; 508. T - shaped ring; 6. Lower docking pipe; 7. Upper docking pipe. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a waste heat recovery system for corn protein powder processing, including a water tank 1. The upper and lower ends of the water tank 1 are separated by partitions into two air chambers 2. A heating pipe 3 is fixedly connected between the two air chambers 2. A flow - regulating assembly 4 is provided between the upper and lower ends of the water tank 1. A cleaning assembly 5 is provided in the middle of the water tank 1. The bottom of the flow - regulating assembly 4 is welded with a lower docking pipe 6.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 4As shown, the flow regulating assembly 4 includes a heating chamber 401 fixedly connected to the bottom end of the water tank 1, a helium tank 402 is fixedly connected inside the heating chamber 401, one end of the helium tank 402 is connected to the flow regulating chamber 403 through a connecting pipe, a piston block 404 is slidably connected inside the flow regulating chamber 403, and a spring 405 is fixedly connected to one side of the piston block 404; the waste gas after heat exchange will flow from the bottom end of the heating pipe 3 into the bottom air chamber 2 of the water tank 1, and enter the heating chamber 401, and finally be discharged from the lower docking pipe 6 into the external waste gas treatment machine If the waste gas after heat exchange still contains a large amount of heat, the helium tank 402 will be heated, so that the helium in the helium tank 402 is heated, and the helium expands and increases in volume, thereby squeezing the piston block 404 to one side of the spring 405 through the connecting pipe, and the piston block 404 will partially block the passage opening between the upper docking pipe 7 and the upper air cavity 2, thereby reducing the amount of waste gas entering the heating tube 3, avoiding excessive waste gas in the heating tube 3 and the inability to completely recover the waste heat therein, resulting in waste, thereby improving the recovery and utilization rate of the waste heat.

[0024] In this embodiment, Figure 2 and Figure 3 As shown, the bottom surface of the flow regulating chamber 403 is connected with the upper air chamber 2 of the water tank 1, and the inner wall of the flow regulating chamber 403 is fixedly connected to one end of the spring 405, and the top surface of the flow regulating chamber 403 is connected with the upper docking pipe 7; the upper docking pipe 7 is used to dock with the boiler exhaust pipe, and the spring 405 can automatically rebound to reset the piston block 404 after the helium heat in the helium tank 402 decreases and shrinks in volume, thereby removing the obstruction of the piston block 404 to the air intake channel and increasing the air intake amount in the heating tube 3. This structure can adaptively adjust the air intake amount in the heating tube 3 and recycle all the waste heat in the exhaust gas as much as possible.

[0025] In this embodiment, Figures 1 - 3 As shown, the cleaning assembly 5 includes a motor 501 fixedly connected to one side of the flow regulating chamber 403 through a mounting plate, a gear 502 is fixedly connected to the output end of the motor 501, a gear ring 503 is meshed on one side of the gear 502, a plurality of connecting rods 504 are fixedly connected to the inner ring of the gear ring 503, and the plurality of connecting rods 504 are connected to each other through a reciprocating screw 505, a fan blade 506 is provided at the top of the reciprocating screw 505, and two sets of T-shaped rings 508 are provided on the upper and lower surfaces of the gear ring 503 , the two sets of T-rings 508 are slidably connected to the inner wall of the upper docking tube 7; the motor 501 drives the gear ring 503 to rotate, and at this time the gear ring 503 drives the reciprocating screw 505 in the middle to rotate through the connecting rod 504. The upper surface of the reciprocating screw 505 is a smooth cylinder, and the surface of the part of the reciprocating screw 505 located between the two partitions inside the water tank 1 is provided with a spiral groove. The rotation of the reciprocating screw 505 drives the scraper 507 to reciprocate up and down in the water tank 1.

[0026] In this embodiment,Figure 2 , Figure 4 and Figure 5 As shown in Figure 2 , Figure 4 and Figure 5 , a scraper 507 is provided in the middle of the reciprocating lead screw 505. The scraper 507 is located between the upper and lower partitions of the water tank 1, and the outer side of the scraper 507 is attached to the inner wall of the water tank 1. The scraper 507 is slidably connected to the heating pipe 3. Driven by the reciprocating lead screw 505, the scraper 507 will move up and down reciprocally. At this time, the scraper 507 will scrape the scale on the surface of the heating pipe 3 to prevent the heat exchange effect from decreasing due to scale formation on the surface of the heating pipe 3. A circle of flow holes is provided on the scraper 507 to allow water flow through when the scraper 507 moves up and down.

[0027] The usage method and advantages of the present utility model: When this kind of corn protein powder processing waste heat recovery system is in use, the working process is as follows:

[0028] First, heat the water in the water tank 1 through the water inlet on the outer side of the water tank 1. Then, connect the upper docking pipe 7 to the boiler exhaust pipe, and connect the lower docking pipe 6 to the external waste gas treatment mechanism. Start the cleaning component 5 to drive the fan blade 506 to rotate to suck the boiler waste gas into the heating pipe 3 to heat the water body in the water tank 1, realizing the recovery and utilization of waste heat of the waste gas. While the cleaning component 5 drives the fan blade 506 to rotate, it will also drive the reciprocating lead screw 505 to rotate, so that the scraper 507 moves up and down reciprocally to scrape the scale on the surface of the heating pipe 3 to prevent scale formation from affecting the heat exchange efficiency of the heating pipe 3. By arranging the helium gas cylinder 402 in the heating chamber 401, the waste heat in the waste gas after heat exchange can be used to heat the helium gas. The volume expansion of the helium gas will push the piston block 404 to partially block the intake passage, thereby reducing the intake volume of the waste gas and avoiding waste caused by the inability to completely displace the waste heat in the waste gas due to excessive waste gas in the heating pipe 3. On the contrary, when the temperature of the waste gas after heat exchange decreases, it means that the waste heat in the heating pipe 3 has been absorbed thoroughly enough. At this time, the temperature of the helium gas decreases and the volume shrinks. Under the action of the spring 405, the piston block 404 resets, increasing the intake volume of the waste gas in the heating pipe 3 and enhancing the heating speed of the water body in the water tank 1. This structure adaptively adjusts the intake volume to maintain high-efficiency recovery of waste heat of the waste gas.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Technical staff in this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present utility model and do not limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery system for corn gluten meal processing, comprising a water tank (1), characterized in that: The upper and lower ends of the water tank (1) are separated by a partition to form two air cavities (2); a heating pipe (3) is fixedly connected between the two air cavities (2); a flow regulating component (4) is provided between the upper and lower ends of the water tank (1); a cleaning component (5) is provided in the middle of the water tank (1); and a lower butt joint pipe (6) is welded to the bottom of the flow regulating component (4); The flow regulating assembly (4) comprises a heating chamber (401) fixedly connected to the bottom end of the water tank (1); a helium tank (402) is fixedly connected to the interior of the heating chamber (401); one end of the helium tank (402) is connected to a flow regulating chamber (403) via a connecting pipe; a piston block (404) is slidably connected to the interior of the flow regulating chamber (403); and a spring (405) is fixedly connected to one side of the piston block (404).

2. A corn gluten meal processing waste heat recovery system according to claim 1, characterized in that: The bottom surface of the flow regulating chamber (403) is connected to the upper air chamber (2) of the water tank (1), and the inner wall of the flow regulating chamber (403) is fixedly connected to one end of the spring (405), and the top surface of the flow regulating chamber (403) is connected to an upper butt joint (7).

3. A corn gluten meal processing waste heat recovery system according to claim 1, characterized in that: The cleaning assembly (5) comprises a motor (501) fixedly connected to one side of the flow regulating chamber (403) via a mounting plate, the output end of the motor (501) being fixedly connected to a gear (502), and one side of the gear (502) being meshed with a gear ring (503).

4. A corn gluten meal processing waste heat recovery system according to claim 3, characterized in that: The inner ring of the gear ring (503) is fixedly connected to a plurality of connecting rods (504), and the plurality of connecting rods (504) are connected to each other via a reciprocating screw (505), and a fan blade (506) is provided at the top end of the reciprocating screw (505).

5. A corn gluten meal processing waste heat recovery system according to claim 4, characterized in that: A scraper (507) is provided in the middle of the reciprocating screw (505). The scraper (507) is located between the upper and lower partitions of the water tank (1), and the outer side of the scraper (507) is in contact with the inner wall of the water tank (1). The scraper (507) is slidably connected to the heating tube (3).

6. A corn gluten meal processing waste heat recovery system according to claim 3, characterized in that: Two groups of T-shaped rings (508) are provided on the upper and lower surfaces of the gear ring (503), and the two groups of T-shaped rings (508) are slidably connected to the inner wall of the upper butt joint (7).

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