Blowing-based high-temperature slag separation and cooling distribution device and temperature regulation method

Abstract

The present application relates to a boiler ash separation cooling and waste heat recovery technical field, specifically to a kind of high-temperature furnace slag separation cooling distribution device and temperature regulation method based on blowing, the upper side of the box is fixedly installed with box cover, the box cover is opened with guide hole, the outer tube is fixedly installed in the guide hole, the opposite sides of the box are respectively opened with air inlet and exhaust port, and the air pipe is fixedly installed in the air inlet and exhaust port;The boiler ash of the present application is transported to the inside of box by guide hopper through the blanking pipe, then the high-temperature boiler ash is blown by gas to separate and cool different particle size ash, then falls on sieve plate to distribute, the slag is cooled and waste heat is recovered in the process of blowing and screening, further cooling and waste heat recovery are realized by non-uniform pipe spacing heat exchanger, and cooperate with the slagging unit to control the speed of slagging, to control the cooling time of slag, and the uniformity of slagging temperature is regulated by the combination of the above cooling mode.

Description

Technical Field

[0001] This invention relates to the field of boiler ash and slag separation, cooling, and waste heat recovery technology, specifically a high-temperature slag separation and cooling material distribution device and temperature control method based on blowing. Background Technology

[0002] Boilers, as important thermal equipment, are widely used in industrial, commercial, and civil sectors. High-temperature boiler ash is the final product formed after a series of physicochemical changes during the combustion of minerals in coal within the boiler. Because ash can cause problems such as furnace fouling, slagging, corrosion, and wear on heating surfaces, affecting the normal operation of the boiler, timely and effective removal of high-temperature boiler ash is essential. High-temperature boiler ash (700~900℃) contains a large amount of waste heat during the removal process. Efficient recovery and utilization of this waste heat can reduce energy consumption during boiler operation, improve energy efficiency, and play a significant role in promoting my country's dual-carbon goals.

[0003] Currently, most high-temperature boiler ash and slag are cooled using cold water flushing and ash coolers. Cold water flushing involves directly immersing the high-temperature boiler ash and slag in water for cooling, which not only pollutes and wastes water resources but also wastes the waste heat of the ash and slag. Ash coolers indirectly cool the high-temperature boiler ash and slag using cooling water inside the cooler cylinder, achieving waste heat recovery. However, the recovered waste heat can only be used to produce hot water, which does not meet the principle of high-quality, high-utilization. Furthermore, ash coolers are mechanical transmission devices, prone to wear and breakage due to friction from the high-temperature boiler ash and slag. During hot operation, the heated components are prone to jamming due to expansion and deformation, resulting in a high equipment failure rate and low output per unit.

[0004] With the increasing size of boilers, the amount of ash discharged from high-temperature boilers is gradually increasing, and heat exchangers for utilizing the waste heat from high-temperature boiler ash are also becoming larger. In practical engineering applications, due to the large processing capacity of heat exchangers, the high-temperature boiler ash cannot evenly fill the entire heat exchanger, resulting in problems such as low utilization rate of heat exchange cross-sectional area and insufficient heat exchange. Therefore, under the conditions of meeting the cooling requirements of ash from large-volume high-temperature boilers and waste heat recovery, it is necessary to seek a method for separating and cooling boiler ash, distributing the ash, and controlling the ash discharge temperature. This would help solve the problems of uneven ash distribution and large ash discharge temperature differences in large-volume boiler heat exchangers. Summary of the Invention

[0005] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and address the issues of uneven distribution of ash and slag in large-capacity high-temperature boilers and large temperature differences at the slag discharge in large heat exchangers. This invention provides a high-temperature slag separation and cooling distribution device and temperature control method based on blowing, which can achieve uniform distribution of ash and slag in large-capacity high-temperature boilers and uniform slag discharge temperature, thereby helping to improve the cooling and waste heat recovery efficiency of high-temperature boiler ash and slag.

[0006] The technical solution of the present invention is: a high-temperature slag separation and cooling distribution device based on blowing, comprising a box body, a box cover fixedly installed on the upper side of the box body, a material guide port opened on the box cover, an outer pipe fixedly installed inside the material guide port, an air inlet and an exhaust port opened on opposite sides of the box body respectively, an air pipe fixedly installed inside the air inlet and the exhaust port, a plurality of sliding grooves opened on the inner wall of the box body, a uniform distribution component slidably installed in the sliding grooves, a non-uniform tube spacing heat exchanger fixedly installed on the inner wall of the box body, the non-uniform tube spacing heat exchanger being located below the uniform distribution component, and an ash and slag treatment component fixedly installed on the inner wall of the non-uniform tube spacing heat exchanger;

[0007] The equal distribution component includes multiple sliders, which are slidably mounted in corresponding grooves. A common sieve plate is fixedly mounted on one side of each slider. Baffles are fixedly mounted on both sides of the top of the sieve plate. The surface of the sieve plate has multiple levels of sieve holes. Multiple separators are fixedly mounted on the upper side of the sieve plate. Vibration springs are fixedly mounted on the upper and lower sides of each slider. A transmission hole is provided on the cover. A transmission rod is rotatably mounted in the transmission hole. A vibration unit is sleeved on the surface of the transmission rod. A servo motor is fixedly mounted on the upper side of the cover. A power component is fixedly mounted on the output end of the servo motor. The power component is fixedly mounted on the surface of the transmission rod.

[0008] Furthermore, the vibration unit includes a sleeve, which is fitted onto the surface of the transmission rod. The surface of the screen plate has an installation hole, and the sleeve is fixedly installed in the installation hole. The surface of the transmission rod has a reciprocating groove, and two limiting blocks are fixedly installed on the inner wall of the sleeve. Both limiting blocks are slidably installed in the reciprocating groove.

[0009] Furthermore, the power assembly includes a primary bevel gear, which is fixedly mounted on the output end of the servo motor. A drive rod is rotatably mounted on the upper side of the housing cover. A secondary bevel gear is fixedly mounted on the top end of the drive rod, and the secondary bevel gear meshes with the primary bevel gear. A drive gear is fixedly mounted on the surface of the drive rod, and a transmission gear is fixedly mounted on the surface of the transmission rod, and the drive gear meshes with the transmission gear.

[0010] Furthermore, multiple connecting springs are fixedly installed on the inner wall of the outer tube, and the other end of the multiple connecting springs is fixedly installed with the same feed pipe. A guide hopper is fixedly installed on the upper side of the feed pipe. A limit port is opened on one side of the outer tube, and a striking block is slidably installed in the limit port. A reciprocating rod is fixedly installed on one side of the striking block, and a reciprocating block is fixedly installed at one end of the reciprocating rod. A reciprocating port is opened on the reciprocating block, and a driving block is fixedly installed on the upper side of the transmission gear. The driving block is slidably installed in the reciprocating port.

[0011] Furthermore, the ash and slag treatment assembly includes a slag discharge unit, heat exchange tubes are fixedly installed inside the non-uniform tube spacing heat exchanger, a water inlet is opened on the lower side of the heat exchange tubes, a water inlet pipe is fixedly installed inside the water inlet, and the water inlet pipe is connected to a conveying pipe, a primary clearance opening is opened on the lower side of the non-uniform tube spacing heat exchanger, a water outlet is opened on the upper side of the heat exchange tubes, a secondary clearance opening is opened on the upper side of the non-uniform tube spacing heat exchanger, a liquid supply unit is fixedly installed on one side of the housing, multiple partition frames are fixedly installed on the upper side of the non-uniform tube spacing heat exchanger, an installation groove is opened at the lower part of the non-uniform tube spacing heat exchanger, a turning unit is fixedly installed in the installation groove, a through opening is opened on the inner wall of the installation groove, and a slag discharge unit is rotatably installed in the through opening.

[0012] Furthermore, the flipping unit includes a mounting strip, which is fixedly installed in a mounting groove. Multiple rotating holes are provided on the upper side of the mounting strip, and a toggle lever is rotatably installed within each rotating hole. A through hole is provided on the inner wall of the mounting groove, and a power rod is rotatably installed within the through hole. A fourth-stage bevel gear is fixedly installed on the surface of the power rod, and a third-stage bevel gear is fixedly installed at the bottom end of the toggle lever. The third-stage bevel gear meshes with the fourth-stage bevel gear. Multiple heat insulation boxes are fixedly installed on the lower side of the mounting strip, and a through hole is provided on one side of each heat insulation box. The power rod is rotatably installed within the through hole.

[0013] Furthermore, the slag discharge unit includes a discharge auger, which is rotatably installed inside the through-hole. A discharge port is provided on the lower side of the non-uniform tube spacing heat exchanger, and a clearance groove is provided on one side of the non-uniform tube spacing heat exchanger. A secondary gear is fixedly installed at one end of the discharge auger, and a primary gear is fixedly installed at one end of the power rod. The primary gear meshes with the secondary gear. A drive motor is fixedly installed on one side of the housing, and a motor hole is provided on one side of the housing. The output shaft of the drive motor is coaxially and fixedly connected to one end of the discharge auger. A thermocouple is installed at the discharge port of the discharge end of the discharge auger. A controller is fixedly installed on one side of the housing, and the thermocouple is electrically connected to the controller. The controller is electrically connected to the drive motor.

[0014] Furthermore, the liquid supply unit includes a water injection tank, which is fixedly installed on one side of the tank body. A water injection port is provided on one side of the water injection tank, and a water injection pipe is fixedly installed inside the water injection port. A delivery port is provided on the lower side of the water injection tank, and a delivery pipe is fixedly installed inside the delivery port. A primary check valve is installed on the water injection pipe, and a secondary check valve is installed on the delivery pipe. A piston is slidably installed on the inner wall of the water injection tank, and the piston and piston are combined to form a reciprocating pump.

[0015] Furthermore, the liquid supply unit also includes a U-shaped rod, one end of which is fixedly connected to one side of the piston. A connection hole is provided on one side of the housing, and a rotating rod is rotatably installed in the connection hole. A half gear is fixedly installed at one end of the rotating rod, and the other end of the rotating rod is coaxially fixedly connected to the power rod. A limit strip is fixedly installed on one side of the housing, and a drive frame is slidably installed on the inner wall of the limit strip. The inner wall of the drive frame is provided with teeth, and a connecting plate is fixedly installed on one side of the drive frame. One side of the connecting plate is fixedly connected to the other end of the U-shaped rod.

[0016] A temperature control method for the above-mentioned high-temperature slag separation and cooling distribution device based on blowing includes the following steps:

[0017] S1. First, the boiler ash is introduced from the feed hopper and enters the box through the feed pipe. The ash is evenly distributed by the equalization component in the box. The screen plate divides the boiler ash of different particle sizes into the corresponding partition for classification. Then, it enters the non-uniform tube spacing heat exchanger to cool the particles of different sizes.

[0018] S2. Then the servo motor output drives the power component to move, knocking on the feed pipe to prevent blockage and vibrating the screen plate to increase the feeding efficiency. During the operation, the temperature of boiler ash in different particle size areas is monitored by thermocouples and the data is transmitted to the controller.

[0019] S3. The output of the drive motor drives the agitator and the discharge auger to rotate. During the process of agitating the ash and slag, the agitator regulates the uniformity of the ash and slag temperature of the same particle size. At the same time, the discharge auger transports the boiler ash and slag to the discharge port on the lower side of the non-uniform tube spacing heat exchanger for discharge. For slag with a temperature higher than the set temperature area, the controller controls the corresponding drive motor to reduce the speed to reduce the discharge speed. For slag with a temperature lower than the set temperature area, the controller controls the drive motor to increase the speed to accelerate the discharge speed, so that the temperature of the discharged boiler ash and slag of different particle sizes is uniform.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In this invention, boiler ash is conveyed from the feed hopper through the feed pipe into the housing. High-temperature boiler ash is then blown by gas for separation and cooling of ash of different particle sizes. The blown ash enters the screen plate, with particle sizes decreasing sequentially from left to right. A servo motor output drives a primary bevel gear to rotate, which in turn drives a secondary bevel gear, which in turn drives a drive rod. The drive rod drives a drive gear, which in turn drives a transmission gear, which in turn drives a transmission rod. The transmission rod, through reciprocating grooves on its surface, drives two limiting blocks to move up and down. These limiting blocks, in turn, drive a sleeve to move up and down. The sleeve, in turn, drives the screen plate to move up and down under the combined action of a slider and a vibration spring. This ensures that the boiler ash on the screen plate surface is evenly distributed by the baffles. The evenly distributed ash falls through the screen holes of different sizes into different partitions, classifying the boiler ash of different particle sizes. The ash is then cooled by heat exchangers with non-uniform tube spacing on the underside of each partition, thus improving heat exchange efficiency.

[0022] 2. In this invention, the drive block is driven to move by the transmission gear, the drive block drives the reciprocating block to reciprocate, the reciprocating block drives the reciprocating rod to reciprocate, the reciprocating rod drives the striking block to continuously strike the feeding tube, and the feeding tube is vibrated by multiple connecting springs connected between the feeding tube and the outer tube to prevent the feeding tube from being blocked.

[0023] 3. In this invention, multiple thermocouples are used to monitor the temperature of boiler ash slag with different particle sizes, and the data is transmitted to the controller. The controller reduces the speed of the drive motor in the area of ​​boiler ash slag with higher temperature, increases the cooling time of the boiler ash slag with higher temperature, and makes the temperature of boiler ash slag with different particle sizes uniform when discharged.

[0024] 4. In this invention, the gas blowing ash and slag separation and cooling, the non-uniform tube spacing heat exchanger cooling, the stirring rod stirring, and the discharge auger speed regulation are coordinated with each other to achieve overall control of the uniformity of the slag discharge temperature. Attached Figure Description

[0025] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0026] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the box in this invention;

[0028] Figure 3 This is a schematic diagram of the structure of the equal distribution component in this invention;

[0029] Figure 4 yes Figure 3 Enlarged structural diagram of region A in the middle;

[0030] Figure 5 This is a schematic diagram of the non-uniform tube spacing heat exchanger in this invention;

[0031] Figure 6 This is a cross-sectional structural diagram of the non-uniform tube spacing heat exchanger in this invention;

[0032] Figure 7 yes Figure 6 Enlarged structural diagram of region B in the middle;

[0033] Figure 8 This is a schematic diagram of the liquid supply unit in this invention;

[0034] Figure 9 yes Figure 8 Enlarged structural diagram of region C in the middle;

[0035] Figure 10 This is a cross-sectional view of the sleeve in this invention;

[0036] Figure 11 This is a schematic diagram of the transmission assembly.

[0037] Figure 12 This is a schematic front sectional view of the evenly divided component in Embodiment 3 of the present invention;

[0038] Figure 13 This is a front sectional view of the material distribution auger in Embodiment 3 of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Housing; 2. Cover; 3. Servo motor; 4. Outer tube; 5. Air pipe; 6. Slider; 7. Vibration spring; 8. Baffle; 9. Non-uniform tube spacing heat exchanger; 10. Partition frame; 11. Guide hopper; 12. Connecting spring; 13. Feed pipe; 14. Screen plate; 15. Separator bar; 16. Transmission rod; 17. Reciprocating inlet; 18. First-stage bevel gear; 19. Second-stage bevel gear; 20. Reciprocating rod; 21. Impact block; 22. Reciprocating block; 23. Transmission hole; 24. Transmission gear; 25. Drive block; 26. Drive gear; 27. Drive rod; 28. Water tank; 29. ​​Rack; 30. Heat exchange tube; 31. Rotary... 32. Rod; 33. Primary gear; 34. Actuating rod; 35. Mounting strip; 36. Drive motor; 37. Secondary gear; 38. Discharge auger; 39. Tertiary bevel gear; 40. Power rod; 41. Quaternary bevel gear; 42. Heat insulation box; 43. Water inlet pipe; 44. Water injection pipe; 45. Conveying pipe; 46. Piston; 47. U-shaped rod; 48. Connecting plate; 49. Drive frame; 50. Limiting strip; 51. Half gear; 52. Pipe sleeve; 53. Limiting block; 54. Reciprocating groove; 55. Controller; 56. Distributing auger; 57. Guide plate; 58. Distribution hole; 59. Cooling chamber; 60. Connecting hole; Detailed Implementation

[0041] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention necessarily exceeds the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but still fall within the protection scope of this application.

[0042] Figures 1-11 This is the preferred embodiment of the present invention, which is described below in conjunction with the accompanying drawings. Figures 1-13 The present invention will be further described below.

[0043] Example 1

[0044] like Figures 1-11 As shown, a high-temperature slag separation and cooling distribution device based on blowing includes a box body 1. A box cover 2 is fixedly installed on the upper side of the box body 1. A material guide port is opened on the box cover 2. An outer pipe 4 is fixedly installed inside the material guide port. An air inlet is provided on the side of the box body 1 near the material guide port, and an exhaust port is provided on the side away from the material guide port. Air pipes 5 are fixedly installed in both the air inlet and the exhaust port. Multiple sliding grooves are opened on the inner wall of the box body 1. A uniform distribution component is slidably installed in the sliding grooves. A non-uniform tube spacing heat exchanger 9 is fixedly installed on the inner wall of the box body 1. The non-uniform tube spacing heat exchanger 9 is located below the uniform distribution component. An ash and slag treatment component is fixedly installed on the inner wall of the non-uniform tube spacing heat exchanger 9.

[0045] The equal distribution component includes multiple sliders 6, which are slidably installed in the slide groove. A sieve plate 14 is fixedly installed on one side of each slider 6. Baffles 8 are fixedly installed on both sides of the top of the sieve plate 14. The surface of the sieve plate 14 has multiple levels of sieve holes. Multiple separators 15 are fixedly installed on the upper side of the sieve plate 14. Vibration springs 7 are fixedly installed on both the upper and lower sides of each slider 6. The other end of the vibration springs 7 is fixedly connected to the inner wall of the housing 1. A transmission hole 23 is provided on the housing cover 2. A transmission rod 16 is rotatably installed in the transmission hole 23. A vibration unit is sleeved on the lower surface of the transmission rod 16. A servo motor 3 is fixedly installed on the upper side of the housing cover 2. A power component is fixedly installed at the output end of the servo motor 3. The power component is fixedly installed on the upper surface of the transmission rod 16.

[0046] With the above structure, the structure installed in the box 1 of this device is made of high-temperature resistant metal material. After being heated in the box 1, it will not deform. By setting a variable frequency high-pressure blower at the air inlet, the ash and slag are separated by air. A star-shaped discharge valve is set at the material guide port to control the material discharge. This can not only ensure good air separation effect during air separation, but also avoid the problem of excessive ash and slag causing the screen plate 14 to fail to vibrate, so as to ensure the continuous and stable operation of the equipment. The height of the gas pipe 5 is located above the sieve plate 14. The sieve plate 14 is inclined in the direction of ash conveying, so as to uniformly distribute the material to the non-uniform tube spacing heat exchanger 9. The gas pipe 5 connected to the gas outlet can be connected to the boiler. The gas blowing not only realizes air separation, but also realizes the preliminary cooling of boiler ash to a certain extent. The hot gas after absorbing heat is supplied to the boiler to improve the combustion efficiency in the boiler. Two sliders 6 are installed on both sides of the sieve plate 14. A vibration spring 7 is installed on the upper and lower sides of each slider 6. The surface of the sieve plate 14 has four sets of sieve holes, which decrease in size from left to right. It can distribute boiler ash of different particle sizes after being cooled and separated by gas blowing. The non-uniform tube spacing heat exchanger 9 is located below the sieve plate 14. A separator 15 is installed at the junction of different sieve holes to divide the surface of the sieve plate 14 into areas evenly, thereby improving the quality of material distribution.

[0047] Appendix Figure 2 The image only shows the relative positional relationship between the screen plate 14 and the box 1 in the air separation direction, and does not show the actual size of the two. The actual width of the screen plate 14 is 3-5 times the width of the slag receiving part of the screen plate 14 along the inclined direction. The width of the slag receiving part is the material dropping width.

[0048] Furthermore, the vibration unit includes a sleeve 51, which is fitted onto the surface of the transmission rod 16. The surface of the screen plate 14 has an installation hole, and the sleeve 51 is fixedly installed in the installation hole. The surface of the transmission rod 16 has a reciprocating groove 53. Two limiting blocks 52 are fixedly installed on the inner wall of the sleeve 51, and both limiting blocks 52 are slidably installed in the reciprocating groove 53.

[0049] With the above structure, the two limiting blocks 52 are spherical and slidably installed in the reciprocating groove 53. When the reciprocating groove 53 rotates, the two limiting blocks 52 can drive the sleeve 51 to move up and down, thereby causing the screen plate 14 to vibrate up and down, preventing the screen holes from being blocked while increasing the material feeding rate.

[0050] Furthermore, the power assembly includes a primary bevel gear 18, which is fixedly mounted on the output end of the servo motor 3. A drive rod 27 is rotatably mounted on the upper side of the cover 2. A secondary bevel gear 19 is fixedly mounted on the top of the drive rod 27 and meshes with the primary bevel gear 18. A drive gear 26 is fixedly mounted on the surface of the drive rod 27, and a transmission gear 24 is fixedly mounted on the surface of the transmission rod 16. The drive gear 26 meshes with the transmission gear 24.

[0051] With the above structure, the servo motor 3 can provide power to the drive rod 27, causing the screen plate 14 to vibrate.

[0052] Furthermore, multiple connecting springs 12 are fixedly installed on the inner wall of the outer tube 4, and the other end of the multiple connecting springs 12 is fixedly installed with the same feed pipe 13. A guide hopper 11 is fixedly installed on the upper side of the feed pipe 13. A limit port is opened on one side of the outer tube 4, and a striking block 21 is slidably installed in the limit port. A reciprocating rod 20 is fixedly installed on one side of the striking block 21, and a reciprocating block 22 is fixedly installed on one end of the reciprocating rod 20. A reciprocating port 17 is opened on the reciprocating block 22. A driving block 25 is fixedly installed on the upper side of the transmission gear 24, and the driving block 25 is slidably installed in the reciprocating port 17.

[0053] Furthermore, since the feed pipe 13 needs to come into contact with high-temperature ash and slag, a layer of high-temperature resistant castable is usually added to its inner wall.

[0054] With the above structure, four equally spaced connecting springs 12 are installed between the outer tube 4 and the feed tube 13. When the striking block 21 strikes the feed tube 13, it can cause the feed tube 13 to vibrate.

[0055] Furthermore, the ash and slag treatment assembly includes a slag discharge unit, a heat exchange tube 30 fixedly installed inside a non-uniform tube spacing heat exchanger 9, a water inlet on the lower side of the heat exchange tube 30, a water inlet pipe 42 fixedly installed inside the water inlet, the water inlet pipe 42 connected to a conveying pipe 44, a primary clearance opening on the lower side of the non-uniform tube spacing heat exchanger 9 to facilitate the extension of the water inlet pipe 42, a drain outlet on the upper side of the heat exchange tube 30, a secondary clearance opening on the upper side of the non-uniform tube spacing heat exchanger 9, a liquid supply unit fixedly installed on one side of the housing 1, multiple partition frames 10 fixedly installed on the upper side of the non-uniform tube spacing heat exchanger 9, an installation groove on the lower part of the non-uniform tube spacing heat exchanger 9, a turning unit fixedly installed inside the installation groove, a through opening on the inner wall of the installation groove, and a slag discharge unit rotatably installed inside the through opening.

[0056] With the above structure, four sets of partition frames 10 are installed on the upper side of the non-uniform tube spacing heat exchanger 9. The guide opening of each partition frame 10 is funnel-shaped, which reduces the amount of boiler ash and slag fed, thereby reducing the bearing pressure of the turning unit and enabling the turning unit to operate normally. Each partition frame 10 is equipped with a heat exchange tube 30 on its lower side, which corresponds to the ash and slag distribution area of ​​different particle sizes on the surface of the sieve plate 14. The number of heat exchange tubes 30 increases from the left side to the right side of the non-uniform tube spacing heat exchanger 9. That is, the area with large particles of boiler ash and slag has the fewest heat exchange tubes 30, and vice versa. The heat exchange tubes 30 are connected to each other, and water can be injected for heat exchange during use.

[0057] Furthermore, the non-uniform tube spacing heat exchanger 9 refers to the non-uniform spacing between the heat exchange tubes 30. In this embodiment, the density of the heat exchange tubes 30 gradually increases from left to right.

[0058] Furthermore, the flipping unit includes a mounting strip 34, which is fixedly installed in the mounting groove. Multiple rotating holes are provided on the upper side of the mounting strip 34, and a toggle rod 33 is rotatably installed in the rotating holes. A through hole is provided on the inner wall of the mounting groove, and a power rod 39 is rotatably installed in the through hole. A fourth-stage bevel gear 40 is fixedly installed on the surface of the power rod 39. A third-stage bevel gear 38 is fixedly installed at the bottom end of the toggle rod 33. The third-stage bevel gear 38 meshes with the fourth-stage bevel gear 40. Multiple heat insulation boxes 41 are fixedly installed on the lower side of the mounting strip 34. A through hole is provided on one side of the heat insulation box 41, and the power rod 39 is rotatably installed in the through hole.

[0059] With the above structure, each mounting strip 34 is equipped with three actuating rods 33, which can agitate the boiler ash and slag to prevent it from clogging the upper side of the mounting groove and affecting the slag discharge. At the same time, the ash and slag agitation process can regulate the uniformity of the discharge temperature of slag of the same particle size. The heat insulation box 41 is convenient for protecting the third-stage bevel gear 38 and the fourth-stage bevel gear 40.

[0060] Furthermore, the slag discharge unit includes a discharge auger 37, which is rotatably installed inside the through-hole. A discharge port is provided on the lower side of the non-uniform tube spacing heat exchanger 9, and a clearance groove is provided on one side of the non-uniform tube spacing heat exchanger 9. A secondary gear 36 is fixedly installed at one end of the discharge auger 37, and a primary gear 32 is fixedly installed at one end of the power rod 39. The primary gear 32 meshes with the secondary gear 36. A drive motor 35 is fixedly installed on one side of the housing 1, and a motor hole is provided on one side of the housing 1. The output shaft of the drive motor 35 is coaxially and fixedly connected to one end of the discharge auger 37. A thermocouple is installed at the discharge port of the discharge end of the discharge auger 37. A controller 54 is fixedly installed on one side of the housing 1. The thermocouple is electrically connected to the controller 54, and the controller 54 is electrically connected to the drive motor 35.

[0061] With the above structure, each of the four heat exchange zones of the non-uniform tube spacing heat exchanger 9 is equipped with an independent slag discharge unit. The cross-section of the area where the discharge auger 37 is installed near the lower side of the mounting groove is circular, which allows the discharge auger 37 to discharge slag. Thermocouples are existing technology and are sensors used for temperature measurement. They will not be described in detail here. Thermocouples can monitor the temperature of boiler ash in different particle size areas and transmit the real-time data to the controller 54. The controller 54 controls the speed of multiple drive motors 35. The speed of drive motors 35 in areas where the temperature of slag is higher than the set temperature decreases, and the speed of drive motors 35 in areas where the temperature of slag is lower than the set temperature increases. At the same time, the lever 33 stirs and adjusts the temperature of boiler ash in areas with the same particle size, so that the temperature of boiler ash of different particle sizes discharged is uniform. The housing 1 is wrapped with heat insulation material to isolate heat and prevent the drive motors 35 from overheating and being damaged.

[0062] Furthermore, the liquid supply unit includes a water injection tank 28, which is fixedly installed on one side of the housing 1. A water injection port is provided on one side of the water injection tank 28, and a water injection pipe 43 is fixedly installed inside the water injection port. A delivery port is provided on the lower side of the water injection tank 28, and a delivery pipe 44 is fixedly installed inside the delivery port. A first-stage check valve is installed on the water injection pipe 43, and a second-stage check valve is installed on the delivery pipe 44. A piston 45 is slidably installed on the inner wall of the water injection tank 28. The water injection tank 28 and the piston 45 are combined to form a reciprocating pump.

[0063] With the above structure, the direction of the first-stage check valve is from the water injection pipe 43 to the water injection tank 28, and the direction of the second-stage check valve is from the water injection tank 28 to the delivery pipe 44.

[0064] Furthermore, the liquid supply unit also includes a U-shaped rod 46, one end of which is fixedly connected to one side of the piston 45. A connection hole is provided on one side of the housing 1, and a rotating rod 31 is rotatably installed in the connection hole. A half gear 50 is fixedly installed on one end of the rotating rod 31, and the other end of the rotating rod 31 is rotatably connected to the power rod 39. A limit strip 49 is fixedly installed on one side of the housing 1, and a drive frame 48 is slidably installed on the inner wall of the limit strip 49. The inner wall of the drive frame 48 is provided with teeth, and a connecting plate 47 is fixedly installed on one side of the drive frame 48. One side of the connecting plate 47 is fixedly connected to the other end of the U-shaped rod 46. The teeth on the half gear 50 alternately mesh with the teeth on the upper and lower sides of the drive frame 48, thereby realizing the reciprocating motion of the drive frame 48.

[0065] Furthermore, the other end of the rotating rod 31 is rotatably sleeved on the power rod 39, and the end of the rotating rod 31 near the half gear 50 is rotatably connected to the housing 1. A transmission assembly is provided between the sieve plate 14 and the rotating rod 31, and the transmission assembly is located between the housing 1 and the non-uniform tube spacing heat exchanger 9.

[0066] The transmission assembly includes a rotatable driven gear mounted on the rotating rod 31, a ratchet mechanism, and a rack 29. Two driven gears are arranged side-by-side along the axial direction of the rotating rod 31. Two racks 29 are symmetrically arranged on both sides of the rotating rod 31, and both racks 29 are fixedly connected to the screen plate 14 and move synchronously with it. Each rack 29 meshes with one of the two driven gears. A ratchet mechanism is provided between each driven gear and the rotating rod 31. The ratchet mechanism enables unidirectional transmission between the driven gear and the rotating rod 31, and the transmission directions of the ratchet mechanisms between the two driven gears and the rotating rod 31 are opposite. The ratchet mechanism is an existing structure, and its specific structure and working principle will not be described in detail here.

[0067] When the sieve plate 14 moves upward, the two racks 29 move upward synchronously. At this time, the two driven gears rotate synchronously. One driven gear acts as the power source and drives the rotating rod 31 to rotate through a ratchet mechanism. The other driven gear rotates relative to the rotating rod 31. When the sieve plate 14 moves downward, the two racks 29 move downward synchronously. At this time, the two driven gears rotate in opposite directions synchronously. The other driven gear acts as the power source and drives the rotating rod 31 to rotate through a ratchet mechanism. The sieve plate 14 moves up and down reciprocally, thereby enabling the rotating rod 31 to rotate continuously in one direction.

[0068] In this embodiment, the sieve plate 14 is cooled by water cooling, which is achieved by setting cooling channels or water cooling jackets on the sieve plate 14.

[0069] Working principle: When the device is in use, the gas pipe 5 at the outlet of the housing 1 is connected to a gas collection device, the water injection pipe 43 is connected to a water source, and a steam drum is connected at the water outlet to achieve steam-water separation and waste heat utilization. Boiler ash is conveyed from the guide hopper 11 to the screen plate 14 through the discharge pipe 13. During this process, the ash is blown by gas, which can not only pre-cool the ash, but also distribute the ash in a manner where the particle size gradually decreases from left to right. The servo motor 3 is started, and the output end of the servo motor 3 drives the first-stage bevel gear 18 to rotate. The first-stage bevel gear 18 drives... The rotating secondary bevel gear 19 drives the drive rod 27 to rotate, which in turn drives the drive gear 26 to rotate. The drive gear 26 then drives the transmission gear 24 to rotate, which in turn drives the drive block 25 to move. The drive block 25 drives the reciprocating block 22 to reciprocate, which in turn drives the reciprocating rod 20 to reciprocate. The reciprocating rod 20 drives the striking block 21 to continuously strike the feed pipe 13. Multiple connecting springs 12 between the feed pipe 13 and the outer pipe 4 cause the feed pipe 13 to vibrate, preventing blockage and ensuring proper air-blown feeding. An external fan can also be connected to the feed inlet for air-assisted feeding.

[0070] While the striking block 21 is striking, the transmission gear 24 also drives the transmission rod 16 to rotate. The transmission rod 16 drives the two limiting blocks 52 to move up and down through the reciprocating groove 53 on its surface. The two limiting blocks 52 drive the sleeve 51 to move up and down. The sleeve 51 drives the screen plate 14 to move up and down under the action of the slider 6 and the vibration spring 7. This makes the boiler ash on the surface of the screen plate 14 evenly distributed with the baffle 8. The screen plate 14 evenly separates boiler ash of different particle sizes from left to right. Boiler ash of different particle sizes is evenly distributed through the screen holes on the surface of the screen plate 14 and falls into different partitions 10 in the non-uniform tube spacing heat exchanger 9. The boiler ash is cooled by heat exchange with the heat exchange tubes 30 in the non-uniform tube spacing heat exchanger 9.

[0071] Multiple thermocouples monitor the temperature of boiler ash and slag of different particle sizes and transmit the data to the controller 54. The controller 54 controls the drive motor 35 to operate. The output of the drive motor 35 drives the discharge auger 37 to rotate. When the discharge auger 37 rotates, it drives the secondary gear 36 to rotate. The secondary gear 36 drives the primary gear 32 to rotate. The primary gear 32 drives the power rod 39 to rotate. The power rod 39 drives multiple fourth-stage bevel gears 40 to rotate. The fourth-stage bevel gears 40 drive the third-stage bevel gear 38 to rotate. The third-stage bevel gear 38 drives the actuating rod 33 to rotate, thus agitating the boiler ash and slag and preventing it from clogging in the mounting slot of the non-uniform tube spacing heat exchanger 9 and causing it to be unable to be transported. At the same time, the agitation process of the ash and slag can further regulate the uniformity of the slag discharge temperature.

[0072] When cooling and conveying boiler ash, water is injected into the water injection pipe 43 through an external water supply device. Cold water enters the water injection tank 28. At this time, the power rod 39 drives the rotating rod 31 to rotate, and the rotating rod 31 drives the half gear 50 to rotate. The drive frame 48 reciprocates under the drive of the half gear 50 through the teeth on its inner wall. The drive frame 48 drives the connecting plate 47 to reciprocate, and the connecting plate 47 drives the U-shaped rod 46 to reciprocate. The U-shaped rod 46 drives the piston 45 to reciprocate. When the piston 45 is pulled out of the water injection tank 28, a negative pressure is generated in the water injection tank 28, and cold water is drawn in through the water injection pipe 43. When the piston 45 is pushed into the water injection tank 28, it is conveyed to the heat exchange tube 30 through the conveying pipe 44.

[0073] The present invention also provides a temperature control method for the above-mentioned high-temperature slag separation and cooling distribution device based on blowing, comprising the following steps:

[0074] S1. First, the boiler ash is introduced from the feed hopper 11 and enters the box 1 through the feed pipe 13. The ash is evenly distributed by the equalizing component in the box 1. The sieve plate 14 divides the boiler ash of different particle sizes into the corresponding partition 10 for classification. Then, it enters the non-uniform tube spacing heat exchanger 9 to cool the particles of different sizes.

[0075] S2. Then the output of the servo motor 3 drives the power component to move, knocking the feed pipe 13 to prevent blockage, and vibrating the screen plate 14 to increase the feeding efficiency. During the operation, the temperature of boiler ash in different particle size areas is monitored by thermocouples and the data is transmitted to the controller 54.

[0076] S3. The output of the drive motor 35 drives the agitator 33 and the discharge auger 37 to rotate. During the process of agitating the ash and slag, the agitator 33 regulates the uniformity of the ash and slag discharge temperature of the same particle size. At the same time, the discharge auger 37 transports the boiler ash and slag to the discharge port on the lower side of the non-uniform tube spacing heat exchanger 9 for discharge. For slag with a temperature higher than the set temperature range, the controller 54 controls the corresponding drive motor 35 to reduce the speed to reduce the discharge speed. For slag with a temperature lower than the set temperature range, the controller 54 controls the drive motor 35 to increase the speed to accelerate the discharge speed, so that the temperature of the discharged boiler ash and slag of different particle sizes is uniform.

[0077] Example 2

[0078] The difference between Example 2 and Example 1 is that the heat exchange tube 30 includes a primary heat exchange tube disposed on the upper side of the non-uniform tube spacing heat exchanger 9 and a secondary heat exchange tube disposed within the non-uniform tube spacing heat exchanger 9. The arrangement of the primary and secondary heat exchange tubes is the same as that of the heat exchange tube 30 in Example 1. The primary and secondary heat exchange tubes are set independently. The primary heat exchange tube recovers heat to generate steam, and the secondary heat exchange tube recovers heat to generate hot water, achieving high-quality and efficient heat utilization and tiered heat recovery.

[0079] Example 3

[0080] like Figures 12-13 As shown, the difference between Embodiment 3 and Embodiment 1 is that in this embodiment, no air inlet and outlet are provided on the housing 1. A material distribution assembly is provided inside the housing 1, located on the upper side of the screen plate 14. The material distribution assembly includes a material distribution auger 55 and a guide plate 56. In this embodiment, the guide hopper 11 is located in the middle of the housing 1. The material distribution auger 55 is rotatably installed inside the housing 1, and the two ends of the material distribution auger 55 rotate in opposite directions. The material distribution auger 55 is connected to a distribution motor that drives its rotation. The guide plate 56 is located between the screen plate 14 and the material distribution auger 55. Both sides of the guide plate 56 are inclined downwards from the middle to the ends, so that the slag moves from the middle to the sides of the material distribution auger 55 under its own gravity and the action of the material distribution auger 55, realizing semi-automatic material feeding.

[0081] The guide plate 56 is provided with a plurality of distribution holes 57. In this embodiment, the diameter of the distribution holes 57 gradually increases from the center to the sides, so that the slag particle size gradually increases from the center to the sides. The auger 55 is disposed inside the shell 60, and the guide plate 56 is disposed at the bottom of the shell 60. Water cooling channels or water cooling jackets are provided on the shell 60 and the guide plate 56 to cool the shell 60 and the guide plate 56 by water cooling.

[0082] Of course, in this embodiment, the density of the heat exchange tubes 30 in the non-uniform tube spacing heat exchanger 9 also needs to gradually decrease from the middle to both sides.

[0083] Furthermore, to improve the cooling effect, the auger 55 is hollow and connected to a circulating water pipe to cool the slag and recover waste heat through cooling water. To ensure better cooling and waste heat recovery, a spiral cooling chamber 58 is provided on the auger 55. The cooling chamber 58 is connected to the inner cavity of the auger 55 through connecting holes 59. Several connecting holes 59 are arranged at intervals along the spiral to increase the cooling area of ​​the slag, reduce thermal wear of the auger blades, and improve its service life.

[0084] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A high-temperature slag separation and cooling distribution device based on blowing, comprising a housing (1), characterized in that: A box cover (2) is fixedly installed on the upper side of the box body (1). A material guide port is opened on the box cover (2). An outer tube (4) is fixedly installed inside the material guide port. An air inlet and an exhaust port are opened on opposite sides of the box body (1). An air pipe (5) is fixedly installed inside the air inlet and the exhaust port. Multiple sliding grooves are opened on the inner wall of the box body (1). A uniform distribution component is slidably installed in the sliding grooves. A non-uniform tube spacing heat exchanger (9) is fixedly installed on the inner wall of the box body (1). The non-uniform tube spacing heat exchanger (9) is located below the uniform distribution component. An ash and slag treatment component is fixedly installed on the inner wall of the non-uniform tube spacing heat exchanger (9). The equal distribution component includes multiple sliders (6), which are slidably installed in the groove. A sieve plate (14) is fixedly installed on one side of each slider (6). Baffles (8) are fixedly installed on both sides of the top of the sieve plate (14). Multiple sieve holes are opened on the surface of the sieve plate (14). Multiple separators (15) are fixedly installed on the upper side of the sieve plate (14). Vibration springs (7) are fixedly installed on both the upper and lower sides of each slider (6). A transmission hole (23) is opened on the box cover (2). A transmission rod (16) is rotatably installed in the transmission hole (23). A vibration unit is sleeved on the surface of the transmission rod (16). A servo motor (3) is fixedly installed on the upper side of the box cover (2). A power component is fixedly installed at the output end of the servo motor (3). The power component is fixedly installed on the surface of the transmission rod (16). The power assembly includes a first-stage bevel gear (18), which is fixedly mounted on the output end of the servo motor (3). A drive rod (27) is rotatably mounted on the upper side of the cover (2). A second-stage bevel gear (19) is fixedly mounted on the top of the drive rod (27). The second-stage bevel gear (19) meshes with the first-stage bevel gear (18). A drive gear (26) is fixedly mounted on the surface of the drive rod (27). A transmission gear (24) is fixedly mounted on the surface of the transmission rod (16). The drive gear (26) meshes with the transmission gear (24). Multiple connecting springs (12) are fixedly installed on the inner wall of the outer tube (4). The other end of the multiple connecting springs (12) is fixedly installed with the same feed pipe (13). A guide hopper (11) is fixedly installed on the upper side of the feed pipe (13). A limit port is opened on one side of the outer tube (4). A striking block (21) is slidably installed in the limit port. A reciprocating rod (20) is fixedly installed on one side of the striking block (21). A reciprocating block (22) is fixedly installed at one end of the reciprocating rod (20). A reciprocating port (17) is opened on the reciprocating block (22). A driving block (25) is fixedly installed on the upper side of the transmission gear (24). The driving block (25) is slidably installed in the reciprocating port (17). The ash and slag treatment assembly includes a slag discharge unit. A heat exchange tube (30) is fixedly installed inside the non-uniform tube spacing heat exchanger (9). A water inlet is opened on the lower side of the heat exchange tube (30). A water inlet pipe (42) is fixedly installed inside the water inlet. The water inlet pipe (42) is connected to a conveying pipe (44). A primary clearance opening is opened on the lower side of the non-uniform tube spacing heat exchanger (9). A water outlet is opened on the upper side of the heat exchange tube (30). A secondary clearance opening is opened on the upper side of the non-uniform tube spacing heat exchanger (9). A liquid supply unit is fixedly installed on one side of the box (1). An installation groove is opened at the lower part of the non-uniform tube spacing heat exchanger (9). A turning unit is fixedly installed inside the installation groove. A through opening is opened on the inner wall of the installation groove. A slag discharge unit is rotatably installed inside the through opening. The flipping unit includes a mounting strip (34), which is fixedly installed in the mounting groove. Multiple rotating holes are opened on the upper side of the mounting strip (34), and a toggle rod (33) is rotatably installed in the rotating holes. A through hole is opened on the inner wall of the mounting groove, and a power rod (39) is rotatably installed in the through hole. A fourth-stage bevel gear (40) is fixedly installed on the surface of the power rod (39). A third-stage bevel gear (38) is fixedly installed at the bottom end of the toggle rod (33). The third-stage bevel gear (38) meshes with the fourth-stage bevel gear (40). Multiple heat insulation boxes (41) are fixedly installed on the lower side of the mounting strip (34). A through hole is opened on one side of the heat insulation box (41), and the power rod (39) is rotatably installed in the through hole. The slag discharge unit includes a discharge auger (37), which is rotatably installed in the through-hole. The lower side of the non-uniform tube spacing heat exchanger (9) is provided with a discharge port. The side of the non-uniform tube spacing heat exchanger (9) is provided with a clearance groove. A secondary gear (36) is fixedly installed at one end of the discharge auger (37). A primary gear (32) is fixedly installed at one end of the power rod (39). The primary gear (32) meshes with the secondary gear (36). A drive motor (35) is fixedly installed on one side of the housing (1). A motor hole is provided on one side of the housing (1). The output shaft of the drive motor (35) is coaxially fixedly connected to one end of the discharge auger (37). A thermocouple is installed at the discharge port of the discharge end of the discharge auger (37). A controller (54) is fixedly installed on one side of the housing (1). The thermocouple is electrically connected to the controller (54). The controller (54) is electrically connected to the drive motor (35). The liquid supply unit includes a water tank (28), which is fixedly installed on one side of the box body (1). A water inlet is provided on one side of the water tank (28), and a water pipe (43) is fixedly installed inside the water inlet. A delivery port is provided on the lower side of the water tank (28), and a delivery pipe (44) is fixedly installed inside the delivery port. A first-stage check valve is installed on the water pipe (43), and a second-stage check valve is installed on the delivery pipe (44). A piston (45) is slidably installed on the inner wall of the water tank (28), and the piston (45) is combined with the piston (45) to form a reciprocating pump. The liquid supply unit also includes a U-shaped rod (46), one end of which is fixedly connected to one side of the piston (45). A connection hole is provided on one side of the housing (1), and a rotating rod (31) is rotatably installed in the connection hole. A half gear (50) is fixedly installed on one end of the rotating rod (31), and the other end of the rotating rod (31) is coaxially fixedly connected to the power rod (39). A limit strip (49) is fixedly installed on one side of the housing (1), and a drive frame (48) is slidably installed on the inner wall of the limit strip (49). The inner wall of the drive frame (48) is provided with teeth, and a connecting plate (47) is fixedly installed on one side of the drive frame (48). One side of the connecting plate (47) is fixedly connected to the other end of the U-shaped rod (46).

2. The high-temperature slag separation and cooling distribution device based on blowing according to claim 1, characterized in that: The vibration unit includes a sleeve (51), which is fitted onto the surface of the transmission rod (16). The surface of the screen plate (14) has an installation hole, and the sleeve (51) is fixedly installed in the installation hole. The surface of the transmission rod (16) has a reciprocating groove (53), and two limiting blocks (52) are fixedly installed on the inner wall of the sleeve (51). Both limiting blocks (52) are slidably installed in the reciprocating groove (53).

3. A temperature control method for a high-temperature slag separation and cooling distribution device based on blowing, as described in claim 1 or 2, characterized in that: Includes the following steps S1. First, the boiler ash is introduced from the feed hopper (11) and enters the box (1) through the feed pipe (13). The ash is evenly distributed by the equalization component in the box (1). The sieve plate (14) divides the boiler ash of different particle sizes into the corresponding partition (10) for classification. Then, it enters the non-uniform tube spacing heat exchanger (9) to cool the particles of different sizes. S2. Then the output of the servo motor (3) drives the power component to move, knocks on the feed pipe (13) to prevent blockage, and vibrates the screen plate (14) to increase the feeding efficiency. During the operation, the temperature of boiler ash in different particle size areas is monitored by thermocouples and the data is transmitted to the controller (54). S3. The output end of the drive motor (35) drives the agitator (33) and the discharge auger (37) to rotate. The agitator (33) regulates the uniformity of the discharge temperature of ash of the same particle size during the stirring process of the ash. At the same time, the discharge auger (37) transports the boiler ash to the discharge port on the lower side of the non-uniform tube spacing heat exchanger (9) for discharge. For slag with a temperature higher than the set temperature area, the controller (54) controls the corresponding drive motor (35) to reduce the speed to reduce the discharge speed. For slag with a temperature lower than the set temperature area, the controller (54) controls the drive motor (35) to increase the speed to accelerate the discharge speed, so that the temperature of the boiler ash of different particle sizes discharged is uniform.

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