Waste heat recovery type roller kiln

Abstract

The utility model discloses a waste heat recovery type roller kiln, and relates to the technical field of roller kilns. The roller kiln comprises a base, a roller kiln body is installed on the top of the base, and a supporting tank is arranged on one side of the roller kiln body. A heat exchange assembly is arranged on one side of the supporting tank and comprises a collecting pipe, the collecting pipe communicates with the top of the roller kiln body, a heat exchange pipe is arranged in the supporting tank, and the bottom of the supporting tank communicates with a water tank. Through the arrangement of the heat exchange assembly, waste gas exhausted by the roller kiln body can be guided out in a centralized mode, the waste gas is circulated to the supporting tank through the heat exchange pipe, water on the surface of the heat exchange pipe can be heated through heat in the waste gas while water is sprayed to the heat exchange pipe through the spray head, and the heat energy recycling effect is achieved; and through the arrangement of the power generation assembly, when water is heated to generate steam, hot steam energy can be converted into electric energy, and heat energy is further recycled.

Description

Technical Field

[0001] The utility model belongs to the technical field of roller kilns, in particular to a waste heat recovery type roller kiln. Background Art

[0002] As a common kiln equipment, roller kiln has the characteristics of continuous feeding, continuous discharging and high production efficiency. It is widely used in industrial production, mainly in titanium dioxide, ceramics and lithium battery industries. The traditional roller kiln heating methods are resistance heating, gas heating and fuel heating.

[0003] However, the roller kiln in the prior art generates a large amount of waste gas during the processing process. The waste gas contains carbon dioxide, carbon monoxide, nitrogen oxides, sulfur oxides and a large amount of processing heat. The waste gas emission will not only have a certain impact on the environment, but also discharge the heat energy in the waste gas, resulting in a waste of resources.

[0004] To this end, we provide a waste heat recovery roller kiln to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a waste heat recovery roller kiln, which solves the problem that the roller kiln in the prior art does not have the function of waste heat recovery, and a large amount of heat energy is discharged while exhausting waste gas, causing waste of resources, through the coordinated arrangement of a heat exchange component and a power generation component.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a waste heat recovery roller kiln, comprising a base, a roller kiln body is installed on the top of the base, and a support tank is arranged on one side of the roller kiln body;

[0008] A heat exchange component is provided on one side of the support tank, and the heat exchange component includes a collecting pipe, and the collecting pipe is connected to the top of the roller kiln body. A heat exchange pipe is provided inside the support tank, and the bottom of the support tank is connected to a water tank, and the top of the water tank is connected to a pressure pump, and the top of the pressure pump is connected to a three-way pipe, and a nozzle is provided inside the support tank;

[0009] A power generation component is arranged at the rear side of the support tank, and the steam heat energy is recovered through the power generation component.

[0010] The utility model is further configured such that the other end of the collecting pipe penetrates into the interior of the supporting tank and is connected with the heat exchange pipe, and the other end of the heat exchange pipe penetrates into the exterior of the supporting tank.

[0011] The utility model is further configured that the top of the three-way pipe is connected to a delivery pipe, and the top of the delivery pipe passes through the interior of the support tank and is connected to the nozzle.

[0012] The utility model is further configured as follows: the power generation component includes an air pipe, the air pipe is connected to the top of the support tank, the rear end of the air pipe is connected to a fixed cylinder, a steam impeller is arranged inside the fixed cylinder, a transmission rod is fixedly connected to the axis of the steam impeller, the rear side of the transmission rod passes through the outside of the fixed cylinder and is fixedly connected to a generator.

[0013] The utility model is further configured that the front side of the generator is fixedly connected to the fixing cylinder, and the surface of the transmission rod is movably connected to the inner wall of the fixing cylinder through a bearing.

[0014] The utility model is further configured that the top of the fixed cylinder is connected to an exhaust pipe, and the bottom of the fixed cylinder is fixedly connected to a mounting frame.

[0015] The utility model is further configured that the surfaces of the three-way pipe are respectively sleeved with a first solenoid valve and a second solenoid valve, and the bottom of the booster pump is fixedly connected to the water tank.

[0016] The utility model has the following beneficial effects:

[0017] The utility model can centrally guide the exhaust gas discharged from the roller kiln body through the arrangement of the heat exchange component, and circulate the exhaust gas to the support tank through the heat exchange pipe. While water is sprayed to the heat exchange pipe through the nozzle, the heat in the exhaust gas will heat the moisture on the surface of the heat exchange pipe, thereby realizing the effect of heat energy recovery. Through the arrangement of the power generation component, when the moisture is heated to generate steam, the hot steam energy can be converted into electrical energy, thereby further recovering the heat energy.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0020] Figure 1 This is a structural stereogram of a waste heat recovery roller kiln.

[0021] Figure 2 It is a waste heat recovery roller kiln. Figure 1 A is an enlarged view of the middle image.

[0022] Figure 3 It is a partial cross-sectional view of a support tank in a waste heat recovery roller kiln.

[0023] Figure 4 It is a side cross-sectional view of a fixed cylinder in a waste heat recovery roller kiln.

[0024] Figure 5 This is a structural side view of a waste heat recovery roller kiln.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Base; 2. Roller kiln body; 3. Support tank; 4. Collecting pipe; 5. Heat exchange pipe; 6. Water tank; 7. Pressure pump; 8. Tee pipe; 9. Nozzle; 10. Delivery pipe; 11. Gas pipe; 12. Fixed cylinder; 13. Steam impeller; 14. Transmission rod; 15. Generator; 16. Exhaust pipe; 17. Mounting frame; 18. First solenoid valve; 19. Second solenoid valve. DETAILED DESCRIPTION

[0027] 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 of 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. Specific embodiment 1

[0029] See also Figure 1-5 The utility model is a waste heat recovery roller kiln, comprising a base 1, a roller kiln body 2 is installed on the top of the base 1, and a support tank 3 is arranged on one side of the roller kiln body 2;

[0030] A heat exchange component is arranged on one side of the support tank 3, and the heat exchange component includes a collecting pipe 4, and the collecting pipe 4 is connected to the top of the roller kiln body 2. A heat exchange pipe 5 is arranged inside the support tank 3, and a water tank 6 is connected to the bottom of the support tank 3, and a pressure pump 7 is connected to the top of the water tank 6, and a three-way pipe 8 is connected to the top of the pressure pump 7, and a nozzle 9 is arranged inside the support tank 3;

[0031] A power generation assembly is provided at the rear side of the support tank 3, and the steam heat energy is recovered through the power generation assembly.

[0032] Specifically, the collecting pipe 4 is connected between the roller kiln body 2 and the heat exchange tube 5, and the waste gas generated during the operation of the roller kiln body 2 can be discharged into the heat exchange tube 5. The other end of the heat exchange tube 5 passes through the outside of the support tank 3 and is connected to the external air pump, so that the waste gas can be extracted for subsequent purification treatment. The heat exchange tube 5 is made of heat-conductive copper tube material, which can effectively conduct heat energy. The heat exchange tube 5 is spirally arranged in the support tank 3, and the pressure pump 7 can extract water from the water tank 6 and transport it to the nozzle 9 after pressurization. Specific embodiment 2

[0034] See also Figure 1-5 On the basis of the specific embodiment 1, the other end of the collecting pipe 4 penetrates into the interior of the supporting tank 3 and is connected with the heat exchange pipe 5, the other end of the heat exchange pipe 5 penetrates into the outside of the supporting tank 3, the top of the tee pipe 8 is connected with a delivery pipe 10, the top of the delivery pipe 10 penetrates into the interior of the supporting tank 3 and is connected with the nozzle 9, the power generation component includes a gas delivery pipe 11, the gas delivery pipe 11 is connected to the top of the supporting tank 3, the rear end of the gas delivery pipe 11 is connected with a fixed cylinder 12, a steam impeller 13 is arranged inside the fixed cylinder 12, a transmission rod 14 is fixedly connected at the axis of the steam impeller 13, the rear side of the transmission rod 14 penetrates into the outside of the fixed cylinder 12 and is fixedly connected with a generator 15.

[0035] Specifically, after the nozzle 9 sprays water onto the surface of the heat exchange tube 5, the water evaporates due to the heat, and the generated high-temperature and high-pressure steam is transported to the fixed cylinder 12 through the gas pipe 11. After the steam enters the fixed cylinder 12, the pressure and flow rate of the steam cause the steam impeller 13 to start rotating. The steam pressure drives the steam impeller 13 to rotate. The steam impeller 13 is connected to the rotor of the generator 15 through the transmission rod 14, thereby driving the rotor of the generator 15 to rotate together. The rotation of the rotor of the generator 15 induces current in the generator 15 to generate electrical energy. This is because the coil in the generator 15 induces current when moving in the magnetic field. According to Faraday's law of electromagnetic induction, the electrical energy generated by the generator 15 is transmitted to the power grid or used for powering specific equipment through the power system, thereby realizing energy conversion and utilization. Specific embodiment three

[0037] See also Figure 1-5 On the basis of the first and second specific embodiments, the front side of the generator 15 is fixedly connected to the fixed cylinder 12, the surface of the transmission rod 14 is movably connected to the inner wall of the fixed cylinder 12 through a bearing, the top of the fixed cylinder 12 is connected to an exhaust pipe 16, the bottom of the fixed cylinder 12 is fixedly connected to a mounting frame 17, the surface of the three-way pipe 8 is respectively provided with a first solenoid valve 18 and a second solenoid valve 19, and the bottom of the booster pump 7 is fixedly connected to the water tank 6.

[0038] Specifically, the first solenoid valve 18 and the second solenoid valve 19 can control the opening and closing of the three-way pipe 8. The side of the three-way pipe 8 is connected to the external pipeline, and the water in the water tank 6 can be pumped into the nozzle 9 through the booster pump 7 to achieve the effect of circulating heating. At the same time, the first solenoid valve 18 can also be controlled to close the delivery pipe 10, and the hot water in the water tank 6 can be pumped out by starting the booster pump 7 again, making it convenient for the staff to use hot water.

[0039] The working principle of the utility model is as follows: the waste gas generated during the operation of the roller kiln body 2 is discharged into the heat exchange tube 5 through the collecting pipe 4. When the waste gas enters the heat exchange tube 5, the tube wall is heated. At the same time, the pressure pump 7 is started by the external controller. The pressure pump 7 draws water in the water tank 6 into the three-way pipe 8, and the water is sprayed onto the surface of the heat exchange tube 5 through the delivery pipe 10 and the nozzle 9. When the water contacts the high-temperature heat exchange tube 5, it evaporates and absorbs heat. The falling hot water enters the water tank 6, which plays a role in waste heat recovery.

[0040] When water comes into contact with the high-temperature heat exchange tube 5, it evaporates and generates steam. The high-temperature and high-pressure steam is transported to the fixed cylinder 12 through the gas pipe 11. After the steam enters the fixed cylinder 12, the pressure and flow rate of the steam cause the steam impeller 13 to start rotating. The steam impeller 13 transmits kinetic energy to the transmission rod 14 and the generator 15. The generator 15 converts the hot steam energy into electrical energy, further improving the effect of waste heat recovery.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A waste heat recovery roller kiln, comprising a base (1), characterized in that: A roller kiln body (2) is installed on the top of the base (1), and a support tank (3) is arranged on one side of the roller kiln body (2); A heat exchange component is provided on one side of the support tank (3), and the heat exchange component includes a collecting pipe (4), the collecting pipe (4) is connected to the top of the roller kiln body (2), a heat exchange pipe (5) is provided inside the support tank (3), the bottom of the support tank (3) is connected to a water tank (6), the top of the water tank (6) is connected to a pressure pump (7), the top of the pressure pump (7) is connected to a three-way pipe (8), and a nozzle (9) is provided inside the support tank (3); A power generation component is arranged on the rear side of the support tank (3), and the steam heat energy is recovered through the power generation component.

2. A waste heat recovery roller kiln according to claim 1, characterized in that: The other end of the collecting pipe (4) penetrates into the interior of the supporting tank (3) and is in communication with the heat exchange pipe (5), and the other end of the heat exchange pipe (5) penetrates into the exterior of the supporting tank (3).

3. The waste heat recovery roller kiln according to claim 1, characterized in that: The top of the three-way pipe (8) is connected to a delivery pipe (10), and the top of the delivery pipe (10) penetrates into the interior of the support tank (3) and is connected to the nozzle (9).

4. The waste heat recovery roller kiln according to claim 1, characterized in that: The power generation assembly comprises an air delivery pipe (11), the air delivery pipe (11) being connected to the top of the support tank (3), the rear end of the air delivery pipe (11) being connected to a fixed cylinder (12), a steam impeller (13) being arranged inside the fixed cylinder (12), a transmission rod (14) being fixedly connected to the axis of the steam impeller (13), the rear side of the transmission rod (14) passing through the outside of the fixed cylinder (12) and being fixedly connected to a generator (15).

5. A waste heat recovery roller kiln according to claim 4, characterized in that: The front side of the generator (15) is fixedly connected to the fixed cylinder (12), and the surface of the transmission rod (14) is movably connected to the inner wall of the fixed cylinder (12) via a bearing.

6. The waste heat recovery roller kiln according to claim 4, characterized in that: The top of the fixed cylinder (12) is connected to an exhaust pipe (16), and the bottom of the fixed cylinder (12) is fixedly connected to a mounting frame (17).

7. The waste heat recovery roller kiln according to claim 1, characterized in that: The surface of the three-way pipe (8) is respectively sleeved with a first solenoid valve (18) and a second solenoid valve (19), and the bottom of the booster pump (7) is fixedly connected to the water tank (6).

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