Residual heat recycling device for calcining furnace

Abstract

The utility model discloses a waste heat recycling device for a calcining furnace, and relates to the technical field of waste heat recycling of calcining furnaces. An S-shaped pipe is fixedly connected in the water tank, a dust removal chamber is arranged at the bottom end of the water tank, a connecting pipe communicated with the interior of the dust removal chamber is fixedly connected to the top end of the dust removal chamber, the top end of the connecting pipe is fixedly connected with the bottom end of the water tank, and the connecting pipe is communicated with the interior of the water tank. High-temperature waste gas is introduced from one end of the gas inlet pipe and moves upwards, when the high-temperature waste gas passes through the filter screen plate, impurities in the gas are filtered through the filter screen plate, so that the environment-friendly requirement is met, then the high-temperature gas enters the S-shaped pipe, the flowing time of the gas in the water tank is prolonged through the S-shaped appearance of the S-shaped pipe, and therefore the heat exchange efficiency of the water tank is improved. And the heated water body can be discharged through the water outlet pipe for use, then waste heat recycling is achieved, and the utilization rate of resources is further increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a waste heat recovery and reuse device for a calcining furnace. Background Art

[0002] A calciner is an industrial equipment used for high-temperature heating and processing of materials. It is widely used in cement, metallurgy, chemical industry, ceramics and other fields. The main function of a calciner is to calcine (or roast) materials at high temperatures to achieve chemical reactions, remove moisture, change chemical composition or improve the physical properties of materials. During the use of the calciner, the high-temperature flue gas generated contains a large amount of heat energy. If this heat energy is not effectively recovered and utilized, it will cause energy waste and environmental burden. In response to the above problems, the inventors proposed a waste heat recovery and reuse device for a calciner to solve the above problems. Utility Model Content

[0003] In order to solve the problem that the drainage structure needs to occupy a large space in the fish pond (simple description of the problem); the purpose of this utility model is to provide a waste heat recovery and reuse device for a calcining furnace.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a waste heat recovery and reuse device for a calcining furnace, comprising a water tank, an S-shaped tube fixedly connected to the interior of the water tank, a dust removal chamber provided at the bottom end of the water tank, a connecting pipe communicating with the interior of the dust removal chamber fixedly connected to the top of the dust removal chamber, the top of the connecting pipe fixedly connected to the bottom end of the water tank, the connecting pipe communicating with the interior of the water tank, a filter screen provided inside the dust removal chamber, vibration assemblies provided on both sides of the filter screen, a collection frame slidingly connected to the bottom of the dust removal chamber, a handle fixedly connected to the side of the collection frame away from the dust removal chamber, a box door hinged on one side of the dust removal chamber, and a handle provided on the box door.

[0005] Preferably, the vibration assembly includes two symmetrically distributed fixed plates, the two fixed plates are respectively fixedly connected to the two sides of the inner wall of the dust removal chamber, the top ends of the fixed plates are fixedly connected to two symmetrically distributed sliding rods, the top ends of the sliding rods are fixedly connected to the limiting blocks, a slide plate is slidably clamped between the outer sides of the two sliding rods, the opposite sides of the slide plates are fixedly connected to the mounting frame, the filter screen is fixedly installed between the two mounting frames, a spring is provided between the bottom surface of the slide plate and the top surface of the fixed plate, the spring is movably sleeved on the outer side of the slide rod, a stepper motor is fixedly installed on one side of the dust removal chamber, the driving end of the stepper motor extends to the interior of the dust removal chamber and is fixedly connected to an eccentric wheel, and the eccentric wheel is in contact with the slide plate.

[0006] Preferably, one side of the bottom end of the dust removal chamber is fixedly connected with an air inlet pipe communicating with the interior of the collection frame, and the top end of the water tank away from the air inlet pipe is fixedly connected with an exhaust pipe communicating with the interior of the S-shaped tube.

[0007] Preferably, a water filling pipe communicating with the interior of the water tank is fixedly connected to the side of the top of the water tank away from the exhaust pipe, a sealing cover is threadedly connected to the top of the water filling pipe, a water outlet pipe is fixedly connected to one side of the bottom of the water tank, and a switch valve is installed on the water outlet pipe.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1. By introducing high-temperature exhaust gas from one end of the air inlet pipe and moving it upward, the filter screen is used to filter impurities in the gas to meet environmental protection requirements. The high-temperature gas then enters the interior of the S-shaped pipe. The "S" shape of the S-shaped pipe increases the time the gas flows inside the water tank, thereby fully heating the water inside the water tank. The heated water can be discharged through the outlet pipe for use, thereby realizing the recovery and reuse of waste heat and further improving resource utilization.

[0010] 2. The eccentric wheel is driven by the stepper motor to rotate, pushing the installation frame to move downward along the outer side of the slide rod and compressing the spring. At the same time, the elastic force of the spring is used to reset the slide plate, thereby realizing vertical reciprocating vibration, shaking off the impurities attached to the bottom of the filter plate, achieving the purpose of cleaning the filter plate, and further improving the service life of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model.

[0014] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0015] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0016] In the figure: 1. Water tank; 2. S-shaped pipe; 3. Dust removal chamber; 4. Connecting pipe; 5. Filter plate; 6. Vibration assembly; 61. Fixed plate; 62. Sliding rod; 63. Slide plate; 64. Spring; 65. Stepper motor; 66. Eccentric wheel; 67. Limit block; 68. Mounting frame; 7. Collecting frame; 8. Exhaust pipe; 9. Inlet pipe; 10. Water injection pipe; 11. Outlet pipe; 12. Box door. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example: Figure 1-4 As shown, the utility model provides a waste heat recovery and reuse device for a calcining furnace, including a water tank 1, an S-shaped tube 2 is fixedly connected to the interior of the water tank 1, a dust removal chamber 3 is provided at the bottom end of the water tank 1, a connecting pipe 4 communicating with the interior of the dust removal chamber 3 is fixedly connected to the top of the dust removal chamber 3, the top of the connecting pipe 4 is fixedly connected to the bottom end of the water tank 1, the connecting pipe 4 is communicated with the interior of the water tank 1, a filter screen 5 is provided inside the dust removal chamber 3, and vibration components 6 are provided on both sides of the filter screen 5.

[0019] The vibration assembly 6 includes two symmetrically distributed fixed plates 61, which are respectively fixedly connected to the two sides of the inner wall of the dust removal chamber 3. The top of the fixed plate 61 is fixedly connected to two symmetrically distributed sliding rods 62, and the top of the sliding rod 62 is fixedly connected to the limiting block 67. A slide plate 63 is slidably connected between the outer sides of the two sliding rods 62, and the opposite side of the slide plate 63 is fixedly connected to a mounting frame 68. The filter plate 5 is fixedly installed between the two mounting frames 68, and a spring 64 is provided between the bottom surface of the slide plate 63 and the top surface of the fixed plate 61. The spring 64 is movably sleeved on the outer side of the slide rod 62. A stepper motor 65 is fixedly installed on one side of the dust removal chamber 3. The driving end of the stepper motor 65 extends to the interior of the dust removal chamber 3 and is fixedly connected to an eccentric wheel 66, which is in contact with the slide plate 63.

[0020] By adopting the above technical solution, the eccentric wheel 66 is driven to rotate by the stepping motor 65, pushing the mounting frame 68 to move downward along the outer side of the slide rod 62 and compressing the spring 64. At the same time, the elastic force of the spring 64 is used to reset the slide plate 63, thereby realizing vertical reciprocating vibration, shaking off impurities attached to the bottom end of the filter screen plate 5, and achieving the purpose of cleaning the filter screen plate 5.

[0021] The bottom of the dust removal chamber 3 is slidably engaged with a collecting frame 7 , and a handle is fixedly connected to the side of the collecting frame 7 away from the dust removal chamber 3 .

[0022] By adopting the above technical solution and providing the collection frame 7, it is convenient to collect the dust and impurities that are shaken off.

[0023] An air inlet pipe 9 communicating with the interior of the collecting frame 7 is fixedly connected to one side of the bottom end of the dust removal chamber 3 , and an exhaust pipe 8 communicating with the interior of the S-shaped tube 2 is fixedly connected to the side of the top end of the water tank 1 away from the air inlet pipe 9 .

[0024] By adopting the above technical solution and providing the air intake pipe 9, it is convenient to allow high-temperature exhaust gas to enter from one end of the air intake pipe 9 and be blown out from the exhaust pipe 8, thereby forming a gas circulation channel.

[0025] The top of the water tank 1 is fixedly connected to a water filling pipe 10 that communicates with the interior of the water tank 1 on the side away from the exhaust pipe 8. The top of the water filling pipe 10 is threadedly connected to a sealing cover. The bottom side of the water tank 1 is fixedly connected to a water outlet pipe 11, and a switch valve is installed on the water outlet pipe 11.

[0026] By adopting the above technical solution, by providing a water injection pipe 10, it is convenient to inject water into the interior of the water tank 1, and by providing a water outlet pipe 11, the heated water is discharged so that the hot water can be used.

[0027] A door 12 is hinged on one side of the dust removal chamber 3 , and a handle is provided on the door 12 .

[0028] By adopting the above technical solution and providing the door 12 , the dust removal chamber 3 can be opened and closed more easily, thereby facilitating the replacement of the filter screen plate 5 .

[0029] Working principle: When the residual heat of the calcining furnace is recovered and reused, the high-temperature exhaust gas is introduced from one end of the air inlet pipe 9 and moves upward. When passing through the filter screen 5, the filter screen 5 is used to filter impurities in the gas to meet environmental protection requirements. Then the high-temperature gas enters the interior of the S-shaped tube 2. The "S" shape of the S-shaped tube 2 is used to increase the flow time of the gas inside the water tank 1, thereby fully heating the water inside the water tank 1. The heated water can be discharged through the outlet pipe 11 for use, thereby realizing the recovery and reuse of the residual heat.

[0030] After the filter screen plate 5 has been used for a period of time, dust and impurities will adhere to its lower surface, affecting the filtering performance of the filter screen plate 5. At this time, the eccentric wheel 66 is driven to rotate by the stepping motor 65, pushing the mounting frame 68 to move downward along the outer side of the slide rod 62 and compressing the spring 64. At the same time, the elastic force of the spring 64 is used to reset the slide plate 63, thereby realizing vertical reciprocating vibration, shaking off the impurities attached to the bottom end of the filter screen plate 5, and achieving the purpose of cleaning the filter screen plate 5.

[0031] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A calcining furnace waste heat recovery and reuse device, comprising a water tank (1), characterized in that: The interior of the water tank (1) is fixedly connected to an S-shaped tube (2); the bottom end of the water tank (1) is provided with a dust removal chamber (3); the top end of the dust removal chamber (3) is fixedly connected to a connecting pipe (4) communicating with the interior of the dust removal chamber (3); the top end of the connecting pipe (4) is fixedly connected to the bottom end of the water tank (1); the connecting pipe (4) is communicated with the interior of the water tank (1); a filter screen (5) is provided inside the dust removal chamber (3); and vibration components (6) are provided on both sides of the filter screen (5).

2. The device for recovering and recycling waste heat from a calcining furnace according to claim 1, wherein: The vibration assembly (6) includes two symmetrically distributed fixed plates (61), the two fixed plates (61) are respectively fixedly connected to the two sides of the inner wall of the dust removal chamber (3), the top of the fixed plate (61) is fixedly connected to two symmetrically distributed sliding rods (62), the top of the sliding rod (62) is fixedly connected to the limiting block (67), a slide plate (63) is slidably connected between the outer sides of the two sliding rods (62), and the opposite side of the slide plate (63) is fixedly connected to the installation frame (68), the filter screen plate (5) is fixedly installed between the two installation frames (68), and a spring (64) is provided between the bottom surface of the slide plate (63) and the top surface of the fixed plate (61), and the spring (64) is movably sleeved on the outer side of the sliding rod (62).

3. The device for recovering and reusing residual heat of a calcining furnace according to claim 2, wherein: A stepper motor (65) is fixedly mounted on one side of the dust removal chamber (3). The driving end of the stepper motor (65) extends into the interior of the dust removal chamber (3) and is fixedly connected to an eccentric wheel (66). The eccentric wheel (66) is in contact with the slide plate (63).

4. The device for recovering and recycling waste heat from a calcining furnace according to claim 1, wherein: The bottom of the dust removal chamber (3) is slidably engaged with a collecting frame (7), and a handle is fixedly connected to the side of the collecting frame (7) away from the dust removal chamber (3).

5. The device for recovering and reusing residual heat from a calcining furnace according to claim 4, wherein: An air inlet pipe (9) communicating with the interior of the collection frame (7) is fixedly connected to one side of the bottom end of the dust removal chamber (3), and an exhaust pipe (8) communicating with the interior of the S-shaped tube (2) is fixedly connected to the side of the top end of the water tank (1) away from the air inlet pipe (9).

6. The device for recovering and recycling waste heat from a calcining furnace according to claim 5, wherein: A water injection pipe (10) communicating with the interior of the water tank (1) is fixedly connected to the side of the top of the water tank (1) away from the exhaust pipe (8), a sealing cover is threadedly connected to the top of the water injection pipe (10), and a water outlet pipe (11) is fixedly connected to one side of the bottom of the water tank (1), and a switch valve is installed on the water outlet pipe (11).

7. The device for recovering and reusing residual heat from a calcining furnace according to claim 1, wherein: A door (12) is hinged on one side of the dust removal chamber (3), and a handle is provided on the door (12).

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