Calcining furnace with waste gas recovery function

Abstract

The invention relates to the field of calcining furnaces, in particular to a calcining furnace with a waste gas recovery function. The lime calcining furnace body is arranged on the ground and used for calcining lime. The supporting frame is arranged on the ground and located on the side of the lime calcining furnace body. The waste gas treatment device is arranged on the supporting frame and used for filtering waste gas generated by lime calcination, and the cleaning device is arranged on the waste gas treatment device and used for cleaning the waste gas treatment device. The waste heat utilization device is arranged on the waste gas treatment device and used for utilizing heat carried by waste gas. The controller is arranged on the side of the supporting frame and arranged on the ground, and the controller is electrically connected with the waste gas treatment device and the waste heat utilization device. The technical effects that during lime calcination, the equipment can filter dust in waste gas generated by lime calcination, the filtered dust is automatically treated in a centralized mode, and meanwhile waste heat carried by the waste gas is utilized are achieved.

Description

Technical Field

[0001] The invention relates to the field of calcining furnaces, in particular to a calcining furnace with a waste gas recovery function. Background Art

[0002] In the industrial production process, the calciner will produce a large amount of waste gas, which often contains harmful substances such as volatile organic compounds (VOCs), particulate matter, etc. In order to protect the environment and human health, the waste gas must be properly treated. Traditional waste gas treatment methods include absorption, adsorption, condensation, combustion, etc., but these methods often have problems such as low treatment efficiency, high energy consumption, and easy to produce secondary pollution.

[0003] In the prior art, since a large amount of waste gas is generated when lime is calcined, it is absolutely impossible to discharge these waste gases directly. They need to go through multiple processing steps. When filtering the dust in the waste gas, due to the accumulation of a large amount of dust, it is very easy to cause clogging of the filter components. At the same time, the waste gas generated when lime is calcined also carries a large amount of heat, which will not only affect the surrounding environment, but also have a certain impact on the service life of the equipment. Therefore, in order to solve the above problems, we provide a calcining furnace with waste gas recovery function. Summary of the invention

[0004] The present invention aims to solve the technical problem of how to filter the dust in the waste gas generated by the lime calcination, automatically and centrally treat the filtered dust, and utilize the waste heat carried by the waste gas, and provides a calcining furnace with a waste gas recovery function.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a calcining furnace with waste gas recovery function, including: a waste gas treatment device, a cleaning device, a waste heat utilization device, a lime calcining furnace body, a controller, and a support frame.

[0006] The lime calcining furnace body is arranged on the ground and is used to calcine lime. The support frame is arranged on the ground and is located on the side of the lime calcining furnace body. The exhaust gas treatment device is arranged on the support frame and is used to filter the exhaust gas generated by lime calcining. The cleaning device is arranged on the exhaust gas treatment device and is used to clean the exhaust gas treatment device. The waste heat utilization device is arranged on the exhaust gas treatment device and is used to utilize the heat carried by the exhaust gas. The controller is arranged on the side of the support frame and is arranged on the ground. The controller is electrically connected to the exhaust gas treatment device and the waste heat utilization device.

[0007] When the lime calcining furnace body starts to calcine lime, the user can start the exhaust gas treatment device through the controller. After the exhaust gas treatment device is started, the exhaust gas treatment device can treat the exhaust gas generated inside the lime calcining furnace body. The cleaning device can clean the exhaust gas treatment device. The waste heat utilization device can utilize the heat carried by the exhaust gas.

[0008] Furthermore, the exhaust gas treatment device includes: a filter tank, a collecting pipe, a driving motor, fan blades, a filter frame, and a filter.

[0009] The filter tank is arranged horizontally above the support frame, is located on the side of the lime calcining furnace body, is fixedly connected to the top surface of the support frame, and is connected to the cleaning device and the waste heat utilization device.

[0010] The collecting pipe is transversely arranged between the filter tank and the lime calcining furnace body, one end of the collecting pipe is communicated with the exhaust gas port of the lime calcining furnace body, and the other end is communicated with the inside of the filter tank.

[0011] The driving motor is arranged on the side of the filter tank away from the collecting tube, the rotating shaft of the driving motor coincides with the axis of the filter tank, the rotating shaft of the driving motor passes through the side of the filter tank and extends to the inside of the filter tank, the rotating shaft of the driving motor is sealed and rotatably connected to the side of the filter tank, and its rotating axis coincides with its own axis.

[0012] The fan blades are arranged inside the filter tank and sleeved on the rotating shaft of the driving motor. The fan blades are fixedly connected to the rotating shaft of the driving motor.

[0013] The filter frame is semi-arc shaped and is arranged inside the filter tank between the fan blades and the collection tube. The edge of the filter frame is tightly fixed to the inner wall of the filter tank. A plurality of holes are arranged on the filter frame, and the inner arc surface of the filter frame faces the collection tube.

[0014] The filter screen is fixedly arranged on the inner arc surface of the filter screen frame.

[0015] Furthermore, the filter frame, fan blades and filter screen are all made of stainless steel metal material.

[0016] Furthermore, the filter tank is a fully sealed tank.

[0017] When the user puts the lime into the lime calcining furnace body for calcination, the user can start the drive motor and solenoid valve through the controller. The drive motor drives the fan blades and the rotating rod to rotate counterclockwise. The rotation of the fan blades can draw the exhaust gas inside the lime calcining furnace body into the filter tank through the collection pipe, and then the dust in the exhaust gas will be filtered by the filter screen and the filter frame.

[0018] Furthermore, the cleaning device includes: an arc-shaped cleaning plate, a rotating rod, a first bevel gear, a second bevel gear, a first rotating rod, a second rotating rod, a semicircular plate, a waste box, a first pulley, and a second pulley.

[0019] The rotating rod is horizontally arranged inside the filter tank, between the filter frame and the fan blades, and its axis coincides with the axis of the filter tank. One end of the rotating rod is rotatably connected to the outer arc surface of the filter frame, and its rotation axis coincides with its own axis. The other end is fixedly connected to the end face of the rotating shaft of the drive motor.

[0020] The arc-shaped cleaning plate is arranged inside the filter tank, between the filter frame and the fan blades. One end of the arc-shaped cleaning plate is sleeved on the rotating rod and fixedly connected to the side of the rotating rod. The side of the arc-shaped cleaning plate close to the filter frame matches the curvature of the outer side of the filter frame, and a plurality of first cleaning brushes are evenly arranged, and the plurality of first cleaning brushes are connected to the side of the filter frame.

[0021] The first bevel gear is sleeved on the rotating rod and is located between the arc-shaped cleaning plate and the fan blades. The first bevel gear is fixedly connected to the side surface of the rotating rod, and its axis coincides with the axis of the rotating rod.

[0022] The first rotating rod is arranged horizontally between the filter frame and the rotating rod, and its axis is perpendicular to the axis of the first bevel gear. One end of the first rotating rod passes through the side of the filter tank and extends to the inside of the filter tank. It is located on the side of the first bevel gear. The side of the first rotating rod is sealed and rotatably connected to the side of the filter tank, and its rotation axis coincides with its own axis.

[0023] The second bevel gear is arranged inside the filter tank and sleeved on the first rotating rod. The second bevel gear is fixedly connected to the side surface of the first rotating rod and meshes with the first bevel gear.

[0024] The second rotating rod is arranged horizontally between the filter frame and the collection tube, and its axis is perpendicular to the axis of the filter tank. One end of the second rotating rod passes through the side of the filter tank, extends to the interior of the filter tank, and is sealed and rotatably connected to the side of the filter tank. Its rotation axis coincides with its own axis.

[0025] The first belt pulley is sleeved on the first rotating rod and is located on the outer side of the filter tank. The first belt pulley is fixedly connected to the side surface of the first rotating rod.

[0026] The second pulley is sleeved on the second rotating rod and is located on the outer side of the filter tank. The second pulley is fixedly connected to the side surface of the second rotating rod and is connected to the first pulley through a belt.

[0027] The semicircular plate is arranged inside the filter tank, between the second rotating rod and the filter screen, the straight edge of the semicircular plate is fixedly connected to the side of the second rotating rod, the arc surface matches the curvature of the inner arc surface of the filter screen, and a number of second cleaning brushes are respectively arranged on the arc surface, and the number of second cleaning brushes are in contact with the filter screen.

[0028] The waste box is located directly below the second rotating rod, the top of the waste box passes through the bottom of the filter tank and is communicated with the interior of the filter tank, and the side of the waste box is sealed and fixedly connected with the bottom of the filter tank.

[0029] Furthermore, the first cleaning brushes and the second cleaning brushes are all made of stainless steel metal material.

[0030] Furthermore, the waste box is fixedly connected to the filter tank by bolts.

[0031] When the rotating rod rotates, the rotating rod will drive the first bevel gear and the arc-shaped cleaning plate to rotate.

[0032] When the arc cleaning plate rotates, the arc cleaning plate can drive the first cleaning brushes to rotate, and the first cleaning brushes clean the holes on the filter frame. At the same time, the first cleaning brushes can continuously hit the holes, so as to vibrate the filter frame and the filter, so that the filter can shake off the dust adhering to its surface.

[0033] The rotation of the first bevel gear drives the second bevel gear to rotate, the rotation of the second bevel gear drives the first rotating rod to rotate, the rotation of the first rotating rod drives the first pulley to rotate, the rotation of the first pulley drives the second pulley to rotate through the belt, the rotation of the second pulley drives the second rotating rod to rotate, and the rotation of the second rotating rod drives the cam and the semicircular plate to rotate.

[0034] The rotation of the semicircular plate drives a plurality of second cleaning brushes to clean the dust on the filter screen, and the dust falls on the bottom of the waste box, thereby collecting the dust.

[0035] Furthermore, the waste heat utilization device includes: a spiral tube, a heating box, a piston cylinder, a cam, a sliding plate, a vertical rod, a water storage tank, a first delivery pipe, a second delivery pipe, a third delivery pipe, and a fourth delivery pipe.

[0036] The heating box is arranged below the filter tank and between the fan blades and the driving motor. The top of the heating box is fixedly connected to the outer side surface of the filter tank.

[0037] One end of the spiral tube passes through the bottom of the filter tank and is connected to the filter tank. One end of the spiral tube inside the filter tank is set as a trumpet port, and the other end passes through the heating box and is connected to the exhaust gas desulfurization tower.

[0038] The cam is arranged on the side of the second pulley away from the filter tank and on the side of the second rotating rod. The side surface of the cam is fixedly connected to the end surface of the second rotating rod away from the filter tank.

[0039] The piston cylinder is arranged below the cam and on the top surface of the support frame, and the bottom surface of the piston cylinder is fixedly connected to the top surface of the support frame.

[0040] The sliding plate is arranged inside the piston cylinder and is sealingly and slidingly connected with the inner wall of the piston cylinder, and the sliding direction is arranged vertically.

[0041] The vertical rod is located on the side of the cam away from the second pulley. The top of the vertical rod is rotatably connected to the raised side of the cam through a rotating shaft. Its rotation axis is parallel to the axis of the second rotating rod, and the bottom end is fixedly connected to the top surface of the sliding plate.

[0042] The water storage tank is arranged on the side of the supporting frame, and its height is higher than the heating box.

[0043] One end of the first delivery pipe is communicated with the bottom of the piston cylinder, and the other end is communicated with the water storage tank. A first one-way valve is arranged inside the first delivery pipe.

[0044] The second delivery pipe is wound around the outer surface of the filter tank, one end of which is connected to the heating box, and the other end is connected to the bottom of the piston cylinder. A second one-way valve is arranged inside the second delivery pipe.

[0045] One end of the third delivery pipe is communicated with the water supply pipe, and the other end is communicated with the inside of the water storage tank through a solenoid valve.

[0046] One end of the fourth delivery pipe is communicated with the water storage tank, and the other end is communicated with the interior of the heating box.

[0047] Furthermore, a liquid level detector is provided inside the water tank, and the liquid level detector is fixedly connected to the inner wall of the water tank and electrically connected to the controller.

[0048] Furthermore, a temperature detector is provided inside the water tank, and the temperature detector is fixedly connected to the bottom surface of the water tank and electrically connected to the controller.

[0049] After the solenoid valve is opened, the water supply pipe can input water into the water tank through the third pipe and the solenoid valve until the liquid level detector detects that the water inside the water tank is full. The controller closes the solenoid valve, and the water entering the water tank will enter the heating box through the fourth delivery pipe, thereby replenishing the water inside the heating box.

[0050] When the exhaust gas enters the spiral tube, the exhaust gas entering the spiral tube will continuously transfer heat to the water inside the heating box through the spiral tube, so that the temperature of the water inside the heating box increases, thereby realizing the recovery and utilization of the heat in the exhaust gas.

[0051] When the cam rotates, the rotation of the cam can drive the vertical rod to move up and down continuously. When the vertical rod moves upward, the vertical rod moves upward to drive the sliding plate to move upward. The sliding plate drives the water inside the heating box to pass through the second delivery pipe and the second one-way valve in sequence and enter the piston cylinder. The water inside the second delivery pipe will absorb the heat from the filter tank heated by the exhaust gas, thereby cooling the filter tank and increasing the service life of the filter tank itself.

[0052] When the vertical rod moves downward, the vertical rod moves downward, driving the sliding plate to move downward, and the sliding plate moves downward to push the water inside the piston cylinder to pass through the first delivery pipe and the first one-way valve in turn and input into the water tank, so as to supply the surrounding residents with hot water they usually need. The surrounding residents can use the water in the water tank through the water pipe. At the same time, after the heated water enters the water tank and mixes with the water inside the water tank, it may enter the heating box again through the fourth delivery pipe. The exhaust gas entering the spiral tube will continuously transfer heat to the water inside the heating box through the spiral tube, so that the heated water can be heated again, thereby maintaining a high temperature and realizing the function of circulating heating of the water in the water tank.

[0053] When the liquid level detector detects that the water level in the water tank is lower than the set water level, the controller controls the solenoid valve to open, and the water supply pipe will replenish water into the water tank through the third delivery pipe and the solenoid valve until the liquid level detector detects that the water in the water tank is full, thereby replenishing the water inside the water tank. The temperature detector can detect the temperature of the water inside the water tank and send it to the controller, so that the user can check the water temperature inside the water tank.

[0054] Beneficial effects of the present invention: 1. The present invention cooperates and supports each other through the exhaust gas treatment device, the cleaning device, the waste heat utilization device, the lime calcining furnace body, the controller, and the support frame. When the lime calcining furnace body starts to calcine lime, the user can start the exhaust gas treatment device through the controller. After the exhaust gas treatment device is started, the exhaust gas treatment device can treat the exhaust gas generated inside the lime calcining furnace body. The cleaning device can clean the exhaust gas treatment device. The waste heat utilization device can utilize the heat carried by the exhaust gas.

[0055] This working method achieves the technical effect that when lime is calcined, the equipment can filter the dust in the waste gas generated by the lime calcination, and automatically centrally treat the filtered dust, while utilizing the waste heat carried by the waste gas.

[0056] 2. The present invention is provided with an arc-shaped cleaning plate, a rotating rod, a first bevel gear, a second bevel gear, a first rotating rod, a second rotating rod, a semicircular plate, a waste box, a first pulley, and a second pulley. The arrangement of the arc-shaped cleaning plate enables the arc-shaped cleaning plate to clean several holes of the filter frame when the driving motor rotates, thereby preventing excessive dust from adhering to the several holes. The arrangement of the semicircular plate can also clean the dust adhering to the surface of the filter, and centrally clean it into the waste box to complete centralized treatment.

[0057] 3. The present invention is provided with a spiral tube, a heating box, a piston cylinder, a cam, a sliding plate, a vertical rod, a water storage tank, a first delivery pipe, a second delivery pipe, a third delivery pipe, and a fourth delivery pipe. The arrangement of the spiral tube can increase the flow path of the exhaust gas, thereby better utilizing the residual heat in the exhaust gas and cooling the exhaust gas. The arrangement of the second delivery pipe allows the water entering the second delivery pipe to absorb the heat on the filter tank, thereby cooling the filter tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 is a cross-sectional view of the filter tank of the present invention; Figure 2 It is a schematic diagram of the back side of the present invention.

[0059] Explanation of the reference numerals in the accompanying drawings: 1. support frame; 20. filter tank; 21. collecting pipe; 22. driving motor; 23. fan blades; 24. filter frame; 25. filter; 30. arc cleaning plate; 31. rotating rod; 32. first bevel gear; 33. second bevel gear; 34. first rotating rod; 35. second rotating rod; 36. semicircular plate; 37. waste box; 38. first pulley; 39. second pulley; 40. spiral tube; 41. heating box; 42. piston cylinder; 43. cam; 44. sliding plate; 45. vertical rod; 46. second conveying pipe. DETAILED DESCRIPTION

[0060] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0061] See also Figure 1-2 : A calcining furnace with waste gas recovery function comprises: a waste gas treatment device, a cleaning device, a waste heat utilization device, a lime calcining furnace body, a controller, and a support frame 1.

[0062] The main body of the lime calcining furnace is arranged on the ground and is used to calcine lime. The support frame 1 is arranged on the ground and is located on the side of the main body of the lime calcining furnace. The exhaust gas treatment device is arranged on the support frame 1 and is used to filter the exhaust gas generated by the lime calcining. The cleaning device is arranged on the exhaust gas treatment device and is used to clean the exhaust gas treatment device. The waste heat utilization device is arranged on the exhaust gas treatment device and is used to utilize the heat carried by the exhaust gas. The controller is arranged on the side of the support frame 1 and is arranged on the ground. The controller is electrically connected to the exhaust gas treatment device and the waste heat utilization device.

[0063] When the lime calcining furnace body starts to calcine lime, the user can start the exhaust gas treatment device through the controller. After the exhaust gas treatment device is started, the exhaust gas treatment device can treat the exhaust gas generated inside the lime calcining furnace body. The cleaning device can clean the exhaust gas treatment device. The waste heat utilization device can utilize the heat carried by the exhaust gas.

[0064] The exhaust gas treatment device includes: a filter tank 20, a collecting pipe 21, a driving motor 22, fan blades 23, a filter frame 24, and a filter 25.

[0065] The filter tank 20 is disposed transversely above the support frame 1 and is located on the side of the lime calcining furnace body. The filter tank 20 is fixedly connected to the top surface of the support frame 1 and is connected to a cleaning device and a waste heat utilization device.

[0066] The collecting pipe 21 is transversely arranged between the filter tank 20 and the lime calcining furnace body. One end of the collecting pipe 21 is communicated with the exhaust gas outlet of the lime calcining furnace body, and the other end is communicated with the inside of the filter tank 20 .

[0067] The driving motor 22 is arranged on the side of the filter tank 20 away from the collecting tube 21. The rotating shaft of the driving motor 22 coincides with the axis of the filter tank 20. The rotating shaft of the driving motor 22 passes through the side of the filter tank 20 and extends to the inside of the filter tank 20. The rotating shaft of the driving motor 22 is sealed and rotatably connected to the side of the filter tank 20, and its rotating axis coincides with its own axis.

[0068] The fan blades 23 are disposed inside the filter tank 20 and sleeved on the rotating shaft of the driving motor 22 . The fan blades 23 are fixedly connected to the rotating shaft of the driving motor 22 .

[0069] The filter frame 24 is semi-arc shaped and is arranged inside the filter tank 20 between the fan blades 23 and the collecting tube 21 . The edge of the filter frame 24 is tightly fixed to the inner wall of the filter tank 20 . A plurality of holes are provided on the filter frame 24 , and the inner arc surface of the filter frame 24 faces the collecting tube 21 .

[0070] The filter screen 25 is fixedly disposed on the inner arc surface of the filter screen frame 24 .

[0071] The filter frame 24, the fan blades 23 and the filter 25 are all made of stainless steel metal material.

[0072] The filter tank 20 is a fully sealed tank.

[0073] When the user puts lime into the lime calcining furnace body for calcining, the user can start the driving motor 22 and the solenoid valve through the controller. The driving motor 22 drives the fan blades 23 and the rotating rod 31 to rotate counterclockwise, and the rotation of the fan blades 23 can draw the exhaust gas inside the lime calcining furnace body into the filter tank 20 through the collection pipe 21, and then the dust in the exhaust gas will be filtered by the filter screen 25 and the filter screen frame 24.

[0074] The cleaning device comprises: an arc-shaped cleaning plate 30 , a rotating rod 31 , a first bevel gear 32 , a second bevel gear 33 , a first rotating rod 34 , a second rotating rod 35 , a semicircular plate 36 , a waste box 37 , a first pulley 38 , and a second pulley 39 .

[0075] The rotating rod 31 is horizontally arranged inside the filter tank 20, between the filter frame 24 and the fan blades 23, and its axis coincides with the axis of the filter tank 20. One end of the rotating rod 31 is rotatably connected to the outer arc surface of the filter frame 24, and its rotation axis coincides with its own axis. The other end is fixedly connected to the end face of the rotating shaft of the drive motor 22.

[0076] The arc-shaped cleaning plate 30 is arranged inside the filter tank 20, between the filter frame 24 and the fan blades 23, one end of the arc-shaped cleaning plate 30 is sleeved on the rotating rod 31, and is fixedly connected to the side of the rotating rod 31, the side of the arc-shaped cleaning plate 30 close to the filter frame 24 matches the curvature of the outer side of the filter frame 24, and a plurality of first cleaning brushes are evenly arranged, and the plurality of first cleaning brushes are connected to the side of the filter frame 24.

[0077] The first bevel gear 32 is sleeved on the rotating rod 31 and is located between the arc cleaning plate 30 and the fan blades 23 . The first bevel gear 32 is fixedly connected to the side surface of the rotating rod 31 , and its axis coincides with the axis of the rotating rod 31 .

[0078] The first rotating rod 34 is arranged horizontally and is located between the filter frame 24 and the rotating rod 31. Its axis is perpendicular to the axis of the first bevel gear 32. One end of the first rotating rod 34 passes through the side of the filter tank 20 and extends to the inside of the filter tank 20. It is located on the side of the first bevel gear 32. The side of the first rotating rod 34 is sealed and rotatably connected to the side of the filter tank 20, and its rotation axis coincides with its own axis.

[0079] The second bevel gear 33 is disposed inside the filter tank 20 and sleeved on the first rotating rod 34 . The second bevel gear 33 is fixedly connected to the side surface of the first rotating rod 34 and meshes with the first bevel gear 32 .

[0080] The second rotating rod 35 is arranged horizontally between the filter frame 24 and the collecting tube 21, and its axis is perpendicular to the axis of the filter tank 20. One end of the second rotating rod 35 passes through the side of the filter tank 20, extends to the interior of the filter tank 20, and is sealed and rotatably connected to the side of the filter tank 20, and its rotation axis coincides with its own axis.

[0081] The first pulley 38 is sleeved on the first rotating rod 34 and is located on the outer side of the filter tank 20 . The first pulley 38 is fixedly connected to the side surface of the first rotating rod 34 .

[0082] The second pulley 39 is sleeved on the second rotating rod 35 and is located on the outer side of the filter tank 20. The second pulley 39 is fixedly connected to the side surface of the second rotating rod 35 and is connected to the first pulley 38 through a belt.

[0083] The semicircular plate 36 is arranged inside the filter tank 20, between the second rotating rod 35 and the filter screen 25, the straight edge of the semicircular plate 36 is fixedly connected to the side of the second rotating rod 35, the arc surface matches the curvature of the inner arc surface of the filter screen 25, and a plurality of second cleaning brushes are respectively arranged on the arc surface, and the plurality of second cleaning brushes are in contact with the filter screen 25.

[0084] The waste box 37 is located directly below the second rotating rod 35 , the top of the waste box 37 passes through the bottom of the filter tank 20 and is connected to the interior of the filter tank 20 , and the side of the waste box 37 is sealed and fixedly connected to the bottom of the filter tank 20 .

[0085] The first cleaning brushes and the second cleaning brushes are all made of stainless steel metal material.

[0086] The waste box 37 is fixedly connected to the filter tank 20 by bolts.

[0087] When the rotating rod 31 rotates, the rotating rod 31 drives the first bevel gear 32 and the arc-shaped cleaning plate 30 to rotate.

[0088] When the arc-shaped cleaning plate 30 rotates, the arc-shaped cleaning plate 30 can drive the first cleaning brushes to rotate, and the first cleaning brushes clean the holes on the filter frame 24. At the same time, the first cleaning brushes can continuously hit the holes, so as to vibrate the filter frame 24 and the filter 25, so that the filter 25 can shake off the dust adhering to its surface.

[0089] The rotation of the first bevel gear 32 drives the second bevel gear 33 to rotate, the rotation of the second bevel gear 33 drives the first rotating rod 34 to rotate, the rotation of the first rotating rod 34 drives the first pulley 38 to rotate, the rotation of the first pulley 38 drives the second pulley 39 to rotate through the belt, the rotation of the second pulley 39 drives the second rotating rod 35 to rotate, the rotation of the second rotating rod 35 drives the cam 43 and the semicircular plate 36 to rotate.

[0090] The rotation of the semicircular plate 36 drives a plurality of second cleaning brushes to clean the dust on the filter screen 25, and the dust falls on the bottom of the waste box 37, thereby collecting the dust.

[0091] The waste heat utilization device includes: a spiral tube 40, a heating box 41, a piston cylinder 42, a cam 43, a sliding plate 44, a vertical rod 45, a water storage tank, a first delivery pipe, a second delivery pipe 46, a third delivery pipe, and a fourth delivery pipe.

[0092] The heating box 41 is disposed below the filter tank 20 and between the fan blades 23 and the drive motor 22 . The top of the heating box 41 is fixedly connected to the outer side of the filter tank 20 .

[0093] One end of the spiral tube 40 passes through the bottom of the filter tank 20 and is connected to the filter tank 20. One end of the spiral tube 40 inside the filter tank 20 is set as a trumpet port, and the other end passes through the heating box 41 and is connected to the exhaust gas desulfurization tower.

[0094] The cam 43 is disposed on the side of the second pulley 39 away from the filter tank 20 and on the side of the second rotating rod 35 . The side surface of the cam 43 is fixedly connected to the end surface of the second rotating rod 35 away from the filter tank 20 .

[0095] The piston cylinder 42 is arranged below the cam 43 and on the top surface of the support frame 1 , and the bottom surface of the piston cylinder 42 is fixedly connected to the top surface of the support frame 1 .

[0096] The sliding plate 44 is disposed inside the piston cylinder 42 and is sealingly and slidingly connected to the inner wall of the piston cylinder 42, and the sliding direction is vertically arranged.

[0097] The vertical rod 45 is located on the side of the cam 43 away from the second pulley 39. The top of the vertical rod 45 is rotatably connected to the raised side of the cam 43 through a rotating shaft. Its rotation axis is parallel to the axis of the second rotating rod 35, and the bottom end is fixedly connected to the top surface of the sliding plate 44.

[0098] The water storage tank is arranged on the side of the support frame 1 , and its height is higher than the heating box 41 .

[0099] One end of the first delivery pipe is communicated with the bottom of the piston cylinder 42, and the other end is communicated with the water storage tank. A first one-way valve is arranged inside the first delivery pipe.

[0100] The second delivery pipe 46 is wound around the outer surface of the filter tank 20 , one end of which is connected to the heating box 41 , and the other end is connected to the bottom of the piston cylinder 42 . A second one-way valve is arranged inside the second delivery pipe 46 .

[0101] One end of the third delivery pipe is communicated with the water supply pipe, and the other end is communicated with the inside of the water storage tank through a solenoid valve.

[0102] One end of the fourth delivery pipe is connected to the water storage tank, and the other end is connected to the interior of the heating box 41.

[0103] A liquid level detector is also arranged inside the water tank. The liquid level detector is fixedly connected to the inner wall of the water tank and is electrically connected to the controller.

[0104] A temperature detector is also arranged inside the water tank, and the temperature detector is fixedly connected to the bottom surface inside the water tank and is electrically connected to the controller.

[0105] After the solenoid valve is opened, the water supply pipe can input water into the water tank through the third pipe and the solenoid valve until the liquid level detector detects that the water inside the water tank is full. The controller closes the solenoid valve, and the water entering the water tank will enter the heating box 41 through the fourth delivery pipe, thereby replenishing the water inside the heating box 41.

[0106] When the exhaust gas enters the spiral tube 40, the exhaust gas entering the spiral tube 40 will continuously transfer heat to the water inside the heating box 41 through the spiral tube 40, so that the temperature of the water inside the heating box 41 increases, thereby realizing the recovery and utilization of the heat in the exhaust gas.

[0107] When the cam 43 rotates, the rotation of the cam 43 can drive the vertical rod 45 to move up and down continuously. When the vertical rod 45 moves upward, the vertical rod 45 moves upward to drive the sliding plate 44 to move upward. The sliding plate 44 drives the water inside the heating box 41 to pass through the second delivery pipe 46 and the second one-way valve in sequence and enter the piston cylinder 42. The water inside the second delivery pipe 46 absorbs the heat from the filter tank 20 heated by the exhaust gas, thereby cooling the filter tank 20 and increasing the service life of the filter tank 20 itself.

[0108] When the vertical rod 45 moves downward, the vertical rod 45 moves downward to drive the sliding plate 44 to move downward, and the sliding plate 44 moves downward to push the water inside the piston cylinder 42 to be input into the water tank through the first delivery pipe and the first one-way valve in turn, so as to supply the hot water needed by the surrounding residents on a daily basis. The surrounding residents can use the water in the water tank through the water pipe. At the same time, after the heated water enters the water tank and is mixed with the water inside the water tank, it may enter the heating box 41 again through the fourth delivery pipe. The exhaust gas entering the spiral tube 40 will continuously transfer heat to the water inside the heating box 41 through the spiral tube 40, so that the water that has been heated can be heated again, thereby maintaining a high temperature and realizing the function of circulating heating of the water in the water tank.

[0109] When the liquid level detector detects that the water level in the water tank is lower than the set water level, the controller controls the solenoid valve to open, and the water supply pipe will replenish water into the water tank through the third delivery pipe and the solenoid valve until the liquid level detector detects that the water in the water tank is full, thereby replenishing the water inside the water tank. The temperature detector can detect the temperature of the water inside the water tank and send it to the controller, so that the user can check the water temperature inside the water tank.

[0110] Working process: When the user puts the lime into the lime calcining furnace body for calcination, the user can start the driving motor 22 and the solenoid valve through the controller. After the solenoid valve is opened, the water supply pipe can input water into the water storage tank through the third pipe and the solenoid valve until the liquid level detector detects that the water inside the water storage tank is full. The controller closes the solenoid valve, and the water entering the water storage tank will enter the heating box 41 through the fourth delivery pipe, so as to replenish the water inside the heating box 41.

[0111] The driving motor 22 drives the fan blades 23 and the rotating rod 31 to rotate counterclockwise. The rotation of the fan blades 23 drives the exhaust gas inside the lime calcining furnace body to pass through the collecting pipe 21, the filter tank 20, the second rotating rod 35, the semicircular plate 36, the filter screen 25, the filter screen frame 24, the second bevel gear 33, the first bevel gear 32, the rotating rod 31, the fan blades 23, and the spiral tube 40 to enter the exhaust gas desulfurization tower for treatment. Thereby, the dust in the exhaust gas can be filtered, and the exhaust gas can be recycled and processed to avoid exhaust gas pollution. When the exhaust gas enters the spiral tube 40, the exhaust gas entering the spiral tube 40 will continuously transfer heat to the water inside the heating box 41 through the spiral tube 40, so that the temperature of the water inside the heating box 41 increases, and the heat in the exhaust gas is recycled.

[0112] When the rotating rod 31 rotates, the rotating rod 31 drives the first bevel gear 32 and the arc-shaped cleaning plate 30 to rotate.

[0113] When the arc-shaped cleaning plate 30 rotates, the arc-shaped cleaning plate 30 can drive the first cleaning brushes to rotate, and the first cleaning brushes clean the holes on the filter frame 24. At the same time, the first cleaning brushes can continuously hit the holes, so as to vibrate the filter frame 24 and the filter 25, so that the filter 25 can shake off the dust adhering to its surface.

[0114] The rotation of the first bevel gear 32 drives the second bevel gear 33 to rotate, the rotation of the second bevel gear 33 drives the first rotating rod 34 to rotate, the rotation of the first rotating rod 34 drives the first pulley 38 to rotate, the rotation of the first pulley 38 drives the second pulley 39 to rotate through the belt, the rotation of the second pulley 39 drives the second rotating rod 35 to rotate, the rotation of the second rotating rod 35 drives the cam 43 and the semicircular plate 36 to rotate.

[0115] The rotation of the semicircular plate 36 drives a plurality of second cleaning brushes to clean the dust on the filter screen 25, and the dust falls on the bottom of the waste box 37, thereby collecting the dust.

[0116] When the cam 43 rotates, the rotation of the cam 43 can drive the vertical rod 45 to move up and down continuously. When the vertical rod 45 moves upward, the vertical rod 45 moves upward to drive the sliding plate 44 to move upward. The sliding plate 44 drives the water inside the heating box 41 to pass through the second delivery pipe 46 and the second one-way valve in sequence and enter the piston cylinder 42. The water inside the second delivery pipe 46 absorbs the heat from the filter tank 20 heated by the exhaust gas, thereby cooling the filter tank 20 and increasing the service life of the filter tank 20 itself.

[0117] When the vertical rod 45 moves downward, the vertical rod 45 moves downward to drive the sliding plate 44 to move downward, and the sliding plate 44 moves downward to push the water inside the piston cylinder 42 to be input into the water tank through the first delivery pipe and the first one-way valve in turn, so as to supply the hot water needed by the surrounding residents on a daily basis. The surrounding residents can use the water in the water tank through the water pipe. At the same time, after the heated water enters the water tank and is mixed with the water inside the water tank, it may enter the heating box 41 again through the fourth delivery pipe. The exhaust gas entering the spiral tube 40 will continuously transfer heat to the water inside the heating box 41 through the spiral tube 40, so that the water that has been heated can be heated again, thereby maintaining a high temperature and realizing the function of circulating heating of the water in the water tank.

[0118] When the liquid level detector detects that the water level in the water tank is lower than the set water level, the controller controls the solenoid valve to open, and the water supply pipe will replenish water into the water tank through the third delivery pipe and the solenoid valve until the liquid level detector detects that the water in the water tank is full, thereby replenishing the water inside the water tank. The temperature detector can detect the temperature of the water inside the water tank and send it to the controller, so that the user can check the water temperature inside the water tank.

[0119] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A calcining furnace with waste gas recovery function, characterized in that: include: Waste gas treatment device, cleaning device, waste heat utilization device, lime calcining furnace body, controller, support frame (1); The lime calcining furnace body is arranged on the ground and is used for calcining lime; the support frame (1) is arranged on the ground and is located on the side of the lime calcining furnace body; the waste gas treatment device is arranged on the support frame (1) and is used for filtering the waste gas generated by the lime calcining; the cleaning device is arranged on the waste gas treatment device and is used for cleaning the waste gas treatment device; the waste heat utilization device is arranged on the waste gas treatment device and is used for utilizing the heat carried by the waste gas; the controller is arranged on the side of the support frame (1) and is arranged on the ground, and the controller is electrically connected to the waste gas treatment device and the waste heat utilization device.

2. The calcining furnace with waste gas recovery function according to claim 1, characterized in that: The exhaust gas treatment device comprises: a filter tank (20), a collection pipe (21), a drive motor (22), a fan blade (23), a filter screen frame (24), and a filter screen (25); The filter tank (20) is arranged transversely above the support frame (1), is located on the side of the lime calcining furnace body, is fixedly connected to the top surface of the support frame (1), and is connected to the cleaning device and the waste heat utilization device; The collecting pipe (21) is transversely arranged between the filtering tank (20) and the lime calcining furnace body, one end of the collecting pipe (21) is connected to the exhaust gas outlet of the lime calcining furnace body, and the other end is connected to the inside of the filtering tank (20); The drive motor (22) is arranged on the side of the filter tank (20) away from the collecting pipe (21), the rotating shaft of the drive motor (22) coincides with the axis of the filter tank (20), the rotating shaft of the drive motor (22) passes through the side of the filter tank (20) and extends to the inside of the filter tank (20), the rotating shaft of the drive motor (22) is sealed and rotatably connected to the side of the filter tank (20), and its rotating axis coincides with its own axis; The fan blade (23) is arranged inside the filter tank (20) and is sleeved on the rotating shaft of the drive motor (22); the fan blade (23) is fixedly connected to the rotating shaft of the drive motor (22); The filter frame (24) is in a semi-arc shape and is arranged inside the filter tank (20) and between the fan blades (23) and the collecting pipe (21). The edge of the filter frame (24) is tightly fixed to the inner wall of the filter tank (20). A plurality of holes are arranged on the filter frame (24). The inner arc surface of the filter frame (24) faces the collecting pipe (21). The filter screen (25) is fixedly arranged on the inner arc surface of the filter screen frame (24).

3. The calcining furnace with waste gas recovery function according to claim 2, characterized in that: The filter screen frame (24), the fan blades (23) and the filter screen (25) are all made of stainless steel metal material.

4. The calcining furnace with waste gas recovery function according to claim 2, characterized in that: The filter tank (20) is a fully sealed tank.

5. The calcining furnace with waste gas recovery function according to claim 2, characterized in that: The cleaning device comprises: an arc-shaped cleaning plate (30), a rotating rod (31), a first bevel gear (32), a second bevel gear (33), a first rotating rod (34), a second rotating rod (35), a semicircular plate (36), a waste box (37), a first belt pulley (38), and a second belt pulley (39); The rotating rod (31) is transversely arranged inside the filter tank (20), between the filter screen frame (24) and the fan blade (23), and its axis coincides with the axis of the filter tank (20); one end of the rotating rod (31) is rotatably connected to the outer arc surface of the filter screen frame (24), and its rotation axis coincides with its own axis; and the other end is fixedly connected to the end surface of the rotation shaft of the drive motor (22); The arc-shaped cleaning plate (30) is arranged inside the filter tank (20) and between the filter frame (24) and the fan blade (23) ring. One end of the arc-shaped cleaning plate (30) is sleeved on the rotating rod (31) and is fixedly connected to the side of the rotating rod (31). The side of the arc-shaped cleaning plate (30) close to the filter frame (24) matches the curvature of the outer side of the filter frame (24), and a plurality of first cleaning brushes are evenly arranged. The plurality of first cleaning brushes are connected to the side of the filter frame (24). The first bevel gear (32) is sleeved on the rotating rod (31) and is located between the arc-shaped cleaning plate (30) and the fan blade (23); the first bevel gear (32) is fixedly connected to the side surface of the rotating rod (31), and its axis coincides with the axis of the rotating rod (31); The first rotating rod (34) is arranged transversely and is located between the filter frame (24) and the rotating rod (31), and its axis is perpendicular to the axis of the first bevel gear (32). One end of the first rotating rod (34) passes through the side of the filter tank (20) and extends to the inside of the filter tank (20) and is located on the side of the first bevel gear (32). The side of the first rotating rod (34) is sealed and rotatably connected to the side of the filter tank (20), and its rotation axis coincides with its own axis. The second bevel gear (33) is arranged inside the filter tank (20) and sleeved on the first rotating rod (34); the second bevel gear (33) is fixedly connected to the side surface of the first rotating rod (34) and meshes with the first bevel gear (32); The second rotating rod (35) is arranged transversely and is located between the filter frame (24) and the collecting pipe (21), and its axis is perpendicular to the axis of the filter tank (20). One end of the second rotating rod (35) passes through the side of the filter tank (20), extends to the inside of the filter tank (20), and is sealed and rotatably connected with the side of the filter tank (20), and its rotation axis coincides with its own axis. The first belt pulley (38) is sleeved on the first rotating rod (34) and is located on the outer side of the filter tank (20). The first belt pulley (38) is fixedly connected to the side of the first rotating rod (34); The second pulley (39) is sleeved on the second rotating rod (35) and is located outside the filter tank (20). The second pulley (39) is fixedly connected to the side of the second rotating rod (35) and is connected to the first pulley (38) via a belt. The semicircular plate (36) is arranged inside the filter tank (20) and between the second rotating rod (35) and the filter screen (25); the straight edge of the semicircular plate (36) is fixedly connected to the side surface of the second rotating rod (35); the arc surface matches the curvature of the inner arc surface of the filter screen (25); and a plurality of second cleaning brushes are respectively arranged on the arc surface, and the plurality of second cleaning brushes are in contact with the filter screen (25); The waste box (37) is located directly below the second rotating rod (35); the top of the waste box (37) passes through the bottom of the filter tank (20) and is connected to the interior of the filter tank (20); the side of the waste box (37) is sealed and fixedly connected to the bottom of the filter tank (20).

6. The calcining furnace with waste gas recovery function according to claim 5, characterized in that: The first cleaning brushes and the second cleaning brushes are all made of stainless steel.

7. The calcining furnace with waste gas recovery function according to claim 5, characterized in that: The waste box (37) is fixedly connected to the filter tank via bolts.

8. The calcining furnace with waste gas recovery function according to claim 5, characterized in that: The waste heat utilization device comprises: a spiral tube (40), a heating box (41), a piston cylinder (42), a cam (43), a sliding plate (44), a vertical rod (45), a water storage tank, a first delivery pipe, a second delivery pipe (46), a third delivery pipe, and a fourth delivery pipe; The heating box (41) is arranged below the filter tank (20) and between the fan blades (23) and the drive motor (22); the top of the heating box (41) is fixedly connected to the outer side of the filter tank (20); One end of the spiral tube (40) passes through the bottom of the filter tank (20) and is connected to the filter tank (20); one end of the spiral tube (40) located inside the filter tank (20) is configured as a trumpet port, and the other end passes through the heating box (41) and is connected to the exhaust gas desulfurization tower; The cam (43) is arranged on the side of the second pulley (39) away from the filter tank (20) and on the side of the second rotating rod (35), and the side surface of the cam (43) is fixedly connected to the end surface of the second rotating rod (35) away from the filter tank (20); The piston cylinder (42) is arranged below the cam (43) and on the top surface of the support frame (1), and the bottom surface of the piston cylinder (42) is fixedly connected to the top surface of the support frame (1); The sliding plate (44) is arranged inside the piston cylinder (42) and is sealingly and slidingly connected to the inner wall of the piston cylinder (42), and the sliding direction is arranged vertically; The vertical rod (45) is located on the side of the cam (43) away from the second pulley (39), the top of the vertical rod (45) is rotatably connected to the raised side of the cam (43) via a rotating shaft, the rotation axis is parallel to the axis of the second rotating rod (35), and the bottom end is fixedly connected to the top surface of the sliding plate (44); The water storage tank is arranged on the side of the support frame (1) and its height is higher than the heating box (41); One end of the first delivery pipe is in communication with the bottom of the piston cylinder (42), and the other end is in communication with the water storage tank, and a first one-way valve is provided inside the first delivery pipe; The second delivery pipe (46) is wound around the outer surface of the filter tank (20), one end of which is connected to the heating box (41) and the other end of which is connected to the bottom of the piston cylinder (42). A second one-way valve is arranged inside the second delivery pipe (46); One end of the third delivery pipe is connected to the water supply pipe, and the other end is connected to the inside of the water storage tank through a solenoid valve; One end of the fourth delivery pipe is connected to the water storage tank, and the other end is connected to the interior of the heating box (41).

9. The calcining furnace with waste gas recovery function according to claim 8, characterized in that: A liquid level detector is also provided inside the water tank. The liquid level detector is fixedly connected to the inner wall of the water tank and is electrically connected to the controller.

10. The calcining furnace with waste gas recovery function according to claim 8, characterized in that: A temperature detector is also arranged inside the water tank, and the temperature detector is fixedly connected to the bottom surface inside the water tank and is electrically connected to the controller.

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