Briquette coal production waste heat recovery device

Abstract

The utility model discloses a briquette coal production waste heat recovery device which comprises a recovery assembly, and the recovery assembly comprises a heat exchange box, a heat exchange pipe, a dehumidification box, a sealing plate, two positioning holes, a ventilation box, a rotating seat, a sliding column, a spring, two mounting seats, a pressing column, an air distribution plate and two guide rails. Hot air discharged by the briquette coal dryer is guided into the heat exchange pipe through the hot air inlet pipe, heat exchange work can be carried out at the moment, moisture in the hot air is adsorbed through the silica gel particles in the ventilation box, the hot air can be dehumidified, the dehumidified hot air flows into the air inlet pipe of the briquette coal dryer, and the heat exchange work can be carried out. Therefore, the air inlet temperature of the briquette coal dryer is increased, heat waste is avoided, the power consumption of the briquette coal dryer can be reduced, and the whole structure is simple. And the rotating seat is pulled upwards, so that the pressing column is moved out of the positioning hole, and the ventilating box can be taken out, so that the silica gel particles in the ventilating box can be dried or replaced.

Description

Technical field:

[0001] The utility model relates to a device, in particular to a waste heat recovery device for briquette production, belonging to the technical field of waste heat recovery. Background technology:

[0002] Coal briquette is made of pulverized coal as the main raw material. It is pressed and shaped by mechanical processing according to the ratio, mechanical strength, and shape required for specific purposes. It has a certain strength, size and shape. The production process of coal briquette mainly includes four processes: raw material preparation, raw material mixing, molding and drying. After the coal briquette molding process, it is necessary to use a coal briquette dryer to dry it so that the water inside the coal briquette evaporates, thereby increasing the density and compressive strength of the coal briquette.

[0003] When the briquette dryer is drying briquette, a lot of heat will be generated. In order to avoid heat waste, a waste heat recovery device is generally used to recover the heat. The traditional waste heat recovery device exchanges heat with hot air through a heat exchanger, and heats cold water into hot water through flue gas, thereby reducing heat waste. However, due to the limited heat exchange efficiency of the heat exchanger and the temperature difference between hot air and cold water, this recovery method will still cause heat waste. In order to further improve the waste heat recovery efficiency and reduce heat waste, the following measures are often taken:

[0004] 1. Replacement with high-efficiency heat exchangers, such as plate heat exchangers, ceramic heat exchangers, etc., can improve heat exchange efficiency and reduce resistance loss, thereby reducing heat waste;

[0005] 2. Use a multi-stage waste heat recovery device: Divide the waste heat recovery device into multiple stages and recover heat step by step, which can make fuller use of waste heat and reduce heat loss between stages;

[0006] Although the above two methods can improve the recovery efficiency of waste heat recovery, it will increase production costs. Therefore, a waste heat recovery device for briquette production is proposed. Utility model content:

[0007] The purpose of the utility model is to provide a waste heat recovery device for coal briquette production to solve one of the problems raised in the above-mentioned background technology.

[0008] The utility model is implemented by the following technical scheme: a waste heat recovery device for briquette production, including a recovery component, the recovery component including a heat exchange box, a heat exchange tube, a dehumidification box, a sealing plate, two positioning holes, a breathable box, a rotating seat, a sliding column, a spring, two mounting seats, a pressure column, an air distribution plate and two guide rails;

[0009] The heat exchange tube is installed inside the heat exchange box, one end of the heat exchange tube is fixedly connected to and communicated with the dehumidification box, the air distribution plate is fixedly connected to the inner wall of the dehumidification box, the two guide rails are symmetrically fixedly connected to the two sides of the inner wall of the dehumidification box, the sealing plate is fixedly connected to the upper surface of the breathable box by screws, the two mounting seats are symmetrically fixedly connected to the two sides of the dehumidification box, the rotating seat is rotatably connected to the upper surface of the sliding column, the pressure column is fixedly connected to the lower surface of the rotating seat, the spring is sleeved on the outer side wall of the sliding column, and the two positioning holes are symmetrically opened on the upper surface of the sealing plate.

[0010] As a further preferred embodiment of the present technical solution: the air permeable box is slidably connected to the inner side walls of the two guide rails, the lower surface of the sealing plate is attached to the upper surface of the dehumidification box, and the sliding column is slidably connected to the inside of the mounting seat.

[0011] As a further preferred embodiment of the present technical solution: the bottom end of the spring is fixedly connected to the bottom end of the sliding column, and the top end of the spring bears against the lower surface of the mounting seat.

[0012] As a further preferred embodiment of the present technical solution: the pressure column is slidably connected to the inner wall of the positioning hole, the air permeable box is located in front of the air distribution plate, and the heat exchange box is located behind the dehumidification box.

[0013] As a further preferred embodiment of the technical solution: an air outlet pipe is installed on the front surface of the dehumidification box, and the front end of the air outlet pipe is fixedly connected to the air inlet pipe of the briquette dryer.

[0014] As a further preferred embodiment of the present technical solution: a pipe assembly is installed at one end of the heat exchange tube, and the pipe assembly includes a hot air inlet pipe, a briquette dryer exhaust pipe, a water inlet pipe and a water outlet pipe;

[0015] The front end of the hot air inlet pipe is fixedly connected and communicated with an end of the heat exchange pipe away from the dehumidification box.

[0016] As a further preferred embodiment of the technical solution: one end of the exhaust pipe of the briquette dryer is connected to the rear end of the hot air inlet pipe.

[0017] As a further preferred embodiment of the present technical solution: the water inlet pipe is installed on the upper surface of the heat exchange box, and the water outlet pipe is installed on one side of the heat exchange box.

[0018] Advantages of the utility model:

[0019] 1. The utility model guides the hot air discharged from the briquette dryer into the heat exchange pipe through the hot air inlet pipe, and heat exchange work can be carried out at this time. The silica gel particles in the breathable box adsorb the moisture in the hot air, so the hot air can be dehumidified. The dehumidified hot air flows into the air inlet pipe of the briquette dryer, thereby increasing the air inlet temperature of the briquette dryer, avoiding heat waste, and reducing the power consumption of the briquette dryer. In addition, the overall structure is simple and the cost is low.

[0020] 2. The utility model can remove the pressure column from the positioning hole by pulling the rotating seat upwards, so that the air-permeable box can be taken out to dry or replace the silica gel particles inside. Description of the drawings:

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the recycling component of the utility model;

[0024] Figure 3 This is a schematic diagram of the connection between the sealing plate and the dehumidification box of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the ventilation box of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the rotating seat of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the dehumidification box of the utility model.

[0028] In the figure: 101, recovery component; 11, heat exchange box; 12, heat exchange tube; 13, dehumidification box; 14, sealing plate; 15, air outlet pipe; 16, air inlet pipe of briquette dryer; 17, positioning hole; 18, breathable box; 19, rotating seat; 20, sliding column; 21, spring; 22, mounting seat; 23, pressure column; 24, air distribution plate; 25, guide rail; 301, pipeline component; 31, hot air inlet pipe; 32, briquette dryer exhaust pipe; 34, water inlet pipe; 35, water outlet pipe. Specific implementation method:

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example

[0031] See also Figure 1-6 The utility model provides a technical solution: a waste heat recovery device for briquette production, including a recovery component 101, the recovery component 101 includes a heat exchange box 11, a heat exchange tube 12, a dehumidification box 13, a sealing plate 14, two positioning holes 17, a breathable box 18, a rotating seat 19, a sliding column 20, a spring 21, two mounting seats 22, a pressure column 23, an air distribution plate 24 and two guide rails 25;

[0032] The heat exchange tube 12 is installed inside the heat exchange box 11, one end of the heat exchange tube 12 is fixedly connected and communicated with the dehumidification box 13, the air distribution plate 24 is fixedly connected to the inner wall of the dehumidification box 13, the two guide rails 25 are symmetrically fixedly connected to the two sides of the inner wall of the dehumidification box 13, the sealing plate 14 is fixedly connected to the upper surface of the breathable box 18 by screws, the two mounting seats 22 are symmetrically fixedly connected to the two sides of the dehumidification box 13, the rotating seat 19 is rotatably connected to the upper surface of the sliding column 20, the pressure column 23 is fixedly connected to the lower surface of the rotating seat 19, the spring 21 is sleeved on the outer wall of the sliding column 20, and the two positioning holes 17 are symmetrically opened on the upper surface of the sealing plate 14.

[0033] In this embodiment, specifically: the breathable box 18 is slidably connected to the inner walls of the two guide rails 25, the lower surface of the sealing plate 14 is attached to the upper surface of the dehumidification box 13, and the sliding column 20 is slidably connected to the inside of the mounting seat 22. The position of the breathable box 18 can be limited by the guide rails 25, which facilitates the installation of the breathable box 18.

[0034] In this embodiment, specifically: the bottom end of the spring 21 is fixedly connected to the bottom end of the sliding column 20, the top end of the spring 21 presses against the lower surface of the mounting seat 22, and the pressure column 23 is slidably connected to the inner wall of the positioning hole 17. Under the push of the spring 21, the sliding column 20 drives the mounting seat 22 to move downward, so that the pressure column 23 is inserted into the positioning hole 17, and the position of the sealing plate 14 can be limited.

[0035] In this embodiment, specifically: the air permeable box 18 is located in front of the air distribution plate 24, the heat exchange box 11 is located behind the dehumidification box 13, the front surface of the dehumidification box 13 is installed with an air outlet pipe 15, the front end of the air outlet pipe 15 is fixedly connected with the air inlet pipe 16 of the briquette dryer, and the interior of the air permeable box 18 is filled with silica gel particles, which can play a dehumidification role.

[0036] In this embodiment, specifically: a pipe assembly 301 is installed at one end of the heat exchange tube 12, and the pipe assembly 301 includes a hot air inlet pipe 31, a briquette dryer exhaust pipe 32, a water inlet pipe 34 and a water outlet pipe 35;

[0037] The front end of the hot air inlet pipe 31 is fixedly connected and communicated with the end of the heat exchange pipe 12 away from the dehumidification box 13, and one end of the coal shape dryer exhaust pipe 32 is communicated with the rear end of the hot air inlet pipe 31, so that the hot air can flow into the heat exchange pipe 12, the dehumidification box 13 and the outlet pipe 15 in sequence through the hot air inlet pipe 31, and then flow into the coal shape dryer inlet pipe 16.

[0038] In this embodiment, specifically: the water inlet pipe 34 is installed on the upper surface of the heat exchange box 11, and the water outlet pipe 35 is installed on one side of the heat exchange box 11. The water source can be input or output through the water inlet pipe 34 and the water outlet pipe 35.

[0039] Working principle or structural principle, when in use, the hot air inlet pipe 31 is connected with the exhaust pipe 32 of the briquette dryer, the outlet pipe 15 is connected with the air inlet pipe 16 of the briquette dryer, and cold water is injected into the heat exchange box 11 through the water inlet pipe 34. When the briquette dryer dries the briquette, the hot air flows into the heat exchange pipe 12 through the hot air inlet pipe 31. At this time, heat exchange can be carried out, the temperature of the cold water rises, and the hot air still has residual heat after heat exchange. The hot air flows into the dehumidification box 13, and the air distribution plate 24 can make the hot air in the dehumidification box 13 evenly flow into the air permeable box 18. The silica gel particles in the air permeable box 18 absorb the moisture in the hot air, so as to realize the dehumidification of the hot air. The dehumidified hot air flows into the air inlet pipe 16 of the briquette dryer through the outlet pipe 15. By increasing the air intake temperature of the briquette dryer, heat waste is avoided, and the power consumption of the briquette dryer can be reduced.

[0040] By pulling the rotating seat 19 upward, the rotating seat 19 drives the pressure column 23 to move out of the positioning hole 17, and then the rotating seat 19 is rotated to make the pressure column 23 deviate from the positioning hole 17. At this time, the breathable box 18 can be taken out through the sealing plate 14 so that the silica gel particles inside the breathable box 18 can be dried or replaced.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste heat recovery device for coal briquette production, characterized in that: The invention comprises a recovery component (101), wherein the recovery component (101) comprises a heat exchange box (11), a heat exchange tube (12), a dehumidification box (13), a sealing plate (14), two positioning holes (17), a breathable box (18), a rotating seat (19), a sliding column (20), a spring (21), two mounting seats (22), a pressure column (23), an air distribution plate (24) and two guide rails (25); The heat exchange tube (12) is installed inside the heat exchange box (11), one end of the heat exchange tube (12) is fixedly connected to and communicated with the dehumidification box (13), the air distribution plate (24) is fixedly connected to the inner wall of the dehumidification box (13), the two guide rails (25) are symmetrically fixedly connected to the two sides of the inner wall of the dehumidification box (13), the sealing plate (14) is fixedly connected to the upper surface of the breathable box (18) by screws, the two mounting seats (22) are symmetrically fixedly connected to the two sides of the dehumidification box (13), the rotating seat (19) is rotatably connected to the upper surface of the sliding column (20), the pressure column (23) is fixedly connected to the lower surface of the rotating seat (19), the spring (21) is sleeved on the outer wall of the sliding column (20), and the two positioning holes (17) are symmetrically opened on the upper surface of the sealing plate (14).

2. The waste heat recovery device for coal briquette production according to claim 1, characterized in that: The ventilation box (18) is slidably connected to the inner side walls of the two guide rails (25), the lower surface of the sealing plate (14) is attached to the upper surface of the dehumidification box (13), and the sliding column (20) is slidably connected to the inside of the mounting seat (22).

3. The waste heat recovery device for coal briquette production according to claim 1, characterized in that: The bottom end of the spring (21) is fixedly connected to the bottom end of the sliding column (20), and the top end of the spring (21) presses against the lower surface of the mounting seat (22).

4. The waste heat recovery device for coal briquette production according to claim 1, characterized in that: The pressure column (23) is slidably connected to the inner wall of the positioning hole (17), the air permeable box (18) is located in front of the air distribution plate (24), and the heat exchange box (11) is located behind the dehumidification box (13).

5. The waste heat recovery device for coal briquette production according to claim 4, characterized in that: An air outlet pipe (15) is installed on the front surface of the dehumidification box (13), and the front end of the air outlet pipe (15) is fixedly connected to an air inlet pipe (16) of a briquette dryer.

6. The waste heat recovery device for coal briquette production according to claim 1, characterized in that: A pipe assembly (301) is installed at one end of the heat exchange tube (12), and the pipe assembly (301) includes a hot air inlet pipe (31), a briquette dryer exhaust pipe (32), a water inlet pipe (34) and a water outlet pipe (35); The front end of the hot air inlet pipe (31) is fixedly connected and communicated with an end of the heat exchange pipe (12) away from the dehumidification box (13).

7. The waste heat recovery device for coal briquette production according to claim 6, characterized in that: One end of the exhaust pipe (32) of the briquette dryer is in communication with the rear end of the hot air inlet pipe (31).

8. The waste heat recovery device for coal briquette production according to claim 6, characterized in that: The water inlet pipe (34) is installed on the upper surface of the heat exchange box (11), and the water outlet pipe (35) is installed on one side of the heat exchange box (11).

Images