Dehumidifying auxiliary device for fireproof calcium silicate board drying kiln

Abstract

The utility model relates to the technical field of dehumidification auxiliary devices, in particular to a dehumidification auxiliary device for a fireproof calcium silicate board drying kiln, which is characterized in that in the process that an output shaft of a dehumidification air inlet motor rotates to realize air inlet of a dehumidifier, the output shaft of the dehumidifier synchronously drives dust removal air inlet fan blades to rotate through a first chain driving assembly; when the dust removal air inlet fan blades rotate, the round rod rotating shaft is driven to rotate through a second chain driving assembly sleeved with the surfaces, dust separation, moisture separation and large foreign matter separation through a foreign matter sieve plate are conducted at the same time, the treatment time and energy consumption are reduced, treated air is cleaner and drier, and the dust removal efficiency is improved. In the process that the round rod rotating shaft is driven to rotate, the bevel scraping plate drives the bevel scraping plate to slide in a reciprocating mode to remove foreign matter accumulated on the surface of the foreign matter sieve plate, and the situation that the foreign matter separation function of the foreign matter sieve plate is affected due to blockage is avoided; and the whole air treatment process can be continuously and efficiently operated.

Description

Technical Field

[0001] The utility model relates to the technical field of dehumidification auxiliary devices, in particular to a dehumidification auxiliary device for a fireproof calcium silicate board drying kiln. Background Art

[0002] Fire-resistant calcium silicate board is made from a base of siliceous and calcium materials, reinforced with fiber materials (such as glass fiber), and then formed and steam-cured. The drying process is crucial to product performance. After steam curing, the board retains free moisture, requiring a 4-5-day drying process in a drying kiln using a gradient temperature ramp. During this period, the kiln humidity must be strictly controlled below 60%. Exceeding this limit can lead to surface defects such as sanding and internal hollowing, which can directly reduce strength and cause flatness errors exceeding 0.5mm / m.

[0003] The dehumidification equipment currently used in drying kilns has technical defects that do not match the production characteristics of calcium silicate boards:

[0004] First, the dehumidifier only provided basic dehumidification functionality and lacked a filter structure designed to address the specific pollutants present in the kiln. The air inside the kiln was contaminated by a complex mix of pollutants due to the shedding of fine dust from the board surfaces and the breakage of glass fibers. Calcium silicate dust particles comprised approximately 70% of the dust, with a diameter of 2-10μm, while impurities in glass fibers were mostly 5-20mm in length. Both were highly hygroscopic, resulting in dust agglomeration and fiber entanglement in high humidity. These pollutants, entering the dehumidifier with the airflow, formed a 0.5-1mm thick crust on the evaporator surface within a month, reducing heat exchange efficiency and dehumidification capacity from 80L / h to 55L / h. Humidity control accuracy deteriorated from ±3% to ±8%, directly resulting in a 5% defect rate for "moisture-induced mottling" on the boards. After three months of continuous use, the machine required four hours of downtime for disassembly and cleaning, costing approximately 2,000 yuan per session. The dust generated during cleaning also caused PM10 concentrations to exceed the standard in the operating environment.

[0005] Secondly, the accompanying cyclone dust collector was improperly installed (downstream of the dehumidifier), resulting in an ineffective "pollution first, treatment later" process. The device only intercepted dust particles larger than 5μm (approximately 30%), leaving fine particles 2-5μm in diameter still entering the dehumidifier and clogging the condenser fins. Furthermore, glass fiber impurities were not effectively filtered out, forming tangles 10-15cm in diameter in the exhaust pipe every 15 days, leading to pipe blockages. On average, the machine needed to be shut down for cleaning 2-3 times per month, and occupational health complaints due to fibers piercing the skin reached 1-2 per month.

[0006] The core of the above problem lies in the functional fragmentation of existing equipment: dehumidification and dust removal operate independently, and there is a lack of coordinated treatment design for the complex pollutants of "high humidity + dust + long fibers", forming a vicious cycle of "decreased dehumidification efficiency - pollutant accumulation - more frequent shutdowns", resulting in a product qualification rate of less than 88% for a long time, which has become a key bottleneck restricting production capacity expansion and cost control. Utility Model Content

[0007] In response to the shortcomings of the existing technology, the utility model provides a fireproof calcium silicate board drying kiln dehumidification auxiliary device, which solves the problem of performing dust filtering at the rear end. Dust and foreign matter entering the dehumidification equipment will cause many disadvantages. On the one hand, dust may adhere to the internal components of the dehumidification equipment, such as the evaporator and condenser of the dehumidifier, affecting the heat exchange efficiency and reducing the dehumidification effect. Long-term accumulation may also cause equipment failure, shorten the equipment life, and increase maintenance costs. On the other hand, foreign matter entering the dehumidification equipment may cause internal pipe blockage, interfere with the normal air circulation, and thus affect the continuity and stability of the dehumidification work. Technical problems.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The dehumidification auxiliary device of the fireproof calcium silicate board drying kiln includes a supporting box body, the upper end of the supporting box body is provided with a dehumidification mechanism for separating moisture, the dehumidification mechanism includes a dehumidifier and a dehumidification air intake motor, the dehumidifier is fixedly connected to the upper end of the supporting box body, the dehumidification air intake motor is fixedly connected to the outer surface of the dehumidifier, the upper end of the supporting box body is provided with an exhaust mechanism for air separation and filtration, the exhaust mechanism includes an air extraction box and an exhaust pipe, the air extraction box is fixedly connected to the upper end of the dehumidifier, the exhaust pipe is fixedly connected to the upper end of the air extraction box, the dehumidifier and the exhaust pipe are connected through a pipeline, the upper end of the supporting box body is provided with a dust removal mechanism for dust separation, the dust removal mechanism includes a cyclone dust collector, The cyclone dust collector is fixedly connected to the upper end of the supporting box body, the cyclone dust collector is located between the dehumidifier and the air extraction box, the cyclone dust collector is rotatably connected to the dust removal intake fan blade, the exhaust pipe is provided with a filtering mechanism for screening large particle materials, the filtering mechanism includes a foreign matter screen plate, the foreign matter screen plate is fixedly connected to the exhaust pipe, the exhaust pipe is slidably connected to the inside of the exhaust pipe, the inclined scraper is fitted with the outer surface of the foreign matter screen plate, the lower end of the exhaust pipe is rotatably connected to a round rod shaft, the dehumidification air intake motor, the dust removal intake fan blade and the outer surface of the round rod shaft are all provided with a chain transmission mechanism for synchronous driving, and the chain transmission mechanism includes a first chain drive assembly and a second chain drive assembly.

[0010] Preferably: the first chain drive assembly is arranged on the outer surface of the dehumidification air intake motor and the dust removal air intake fan blades, the second chain drive assembly is arranged on the outer surface of the dust removal air intake fan blades and the round rod rotating shaft, and the outer surface of the exhaust pipe and the round rod rotating shaft is provided with a crank slider mechanism for driving the inclined scraper to slide back and forth.

[0011] Preferably, the cross-shaped slider is slidably connected to the inside of the hollow sliding bracket, and the two strong magnets are fixedly connected to the inside of the cross-shaped slider and the inclined scraper respectively.

[0012] Preferably, the crank mechanism is sleeved on the outer surface of the round rod shaft, and the crank mechanism is rotatably connected to the inside of the cross-shaped slider.

[0013] Preferably, a foreign matter collection box is fixedly connected to the lower end of the exhaust pipe.

[0014] Preferably, the lower end of the exhaust pipe is fixedly connected to two ball bearing supports, and the upper end of the cyclone dust collector is sleeved with two connecting pipes.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. During the dehumidification air intake motor output shaft rotates to realize the air intake process of the dehumidifier, the dehumidifier output shaft synchronously drives the dust removal air intake fan blades to rotate through the first chain drive assembly. When the dust removal air intake fan blades rotate, they will drive the round rod shaft to rotate through the second chain drive assembly sleeved on the surface. Dust separation, moisture separation and separation of large foreign objects by the foreign body screen plate are carried out simultaneously, which reduces the processing time and energy consumption, and makes the treated air cleaner and drier, thereby improving the performance and air quality of the entire air treatment equipment. During the rotation of the round rod shaft, the inclined scraper will drive the inclined scraper to slide back and forth to remove foreign objects accumulated on the surface of the foreign body screen plate to avoid blockage and affect the foreign body separation function of the foreign body screen plate, so that the entire air treatment process can operate uninterruptedly and efficiently.

[0017] By installing a dehumidifier, the dehumidifier separates moisture from the air through the principle of condensation, reducing the moisture content inside the drying kiln and significantly improving the strength of the board. After the moisture content of the board is reduced, it provides the necessary conditions for the subsequent processing of the board, namely sanding, edge grinding and dust collection, thereby avoiding high humidity in the kiln during the drying process, which reduces the drying efficiency. While improving the output ratio and utilization efficiency of the drying kiln, it reduces steam usage, shortens the working time of the drying kiln, improves production efficiency, reduces production costs, and is conducive to improving production efficiency.

[0018] During the process of the dehumidification air intake motor output shaft rotating to realize the air intake of the dehumidifier, the dehumidifier output shaft synchronously drives the dust removal air intake fan blades to rotate through the first chain drive assembly. When the dust removal air intake fan blades rotate to perform the air intake operation of the cyclone dust collector, the dust removal air intake fan blades transmit power again through the second chain drive assembly sleeved on the surface, thereby driving the round rod shaft to rotate. The power transmission method of the first chain drive assembly and the second chain drive assembly can reduce the setting of the power source, which is beneficial to saving the production cost.

[0019] After the dust and moisture in the air are separated through the process of vacuum box, cyclone dust collector and dehumidifier, the clean air is discharged to the outside. The dust is separated by cyclone dust collector before the moisture separation operation, which is beneficial to improve the cleanliness of the inside of the dehumidifier, thereby extending the maintenance cycle of the dehumidifier and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0022] Figure 2 This is a connection structure diagram of the cyclone dust collector of the present utility model;

[0023] Figure 3 This is a diagram of the dust removal and air intake fan blade connection structure of the utility model;

[0024] Figure 4 This is a diagram of the connection structure of the foreign body screening plate of the present utility model;

[0025] Figure 5 This is an exploded view of the round rod shaft connection of the utility model;

[0026] Figure 6 This is an exploded view of the inclined scraper connection of the utility model;

[0027] Figure 7 This is an exploded diagram of the strong magnet connection of the utility model.

[0028] Legend: 11. Support box; 12. Dehumidifier; 13. Dehumidification air intake motor; 14. Exhaust box; 15. Exhaust pipe; 16. Cyclone dust collector; 17. Dust removal air intake fan blade; 18. Foreign matter screen plate; 19. Inclined scraper; 21. Round rod shaft; 22. First chain drive assembly; 23. Second chain drive assembly; 24. Hollow sliding bracket; 25. Cross-shaped slider; 26. Strong magnet; 27. Crank mechanism; 28. Foreign matter collection box; 29. ​​Ball bearing support; 31. Connecting pipe. DETAILED DESCRIPTION

[0029] The present application provides a fireproof calcium silicate board drying kiln dehumidification auxiliary device, which effectively solves the many disadvantages caused by dust and foreign matter entering the dehumidification equipment during dust filtering work at the back end.

[0030] like Figure 1 - Figure 7As shown, the overall idea of ​​the technical solution of the present application is as follows: a dehumidification auxiliary device for a fireproof calcium silicate board drying kiln includes a supporting box body 11, and a dehumidification mechanism for separating moisture is provided on the upper end of the supporting box body 11. The dehumidification mechanism includes a dehumidifier 12 and a dehumidification air intake motor 13. The dehumidifier 12 is fixedly connected to the upper end of the supporting box body 11, and the dehumidification air intake motor 13 is fixedly connected to the outer surface of the dehumidifier 12. The upper end of the supporting box body 11 is provided with an exhaust mechanism for air separation and filtration. The exhaust mechanism includes an exhaust box 14 and an exhaust pipe 15. The exhaust box 14 is fixedly connected to the upper end of the dehumidifier 12, and the exhaust pipe 15 is fixedly connected to the upper end of the exhaust box 14. The dehumidifier 12 and the exhaust pipe 15 are connected through a pipeline. The upper end of the support box 11 is provided with a dust removal mechanism for dust separation, and the dust removal mechanism includes a cyclone dust collector 16, which is fixedly connected to the upper end of the support box 11. The cyclone dust collector 16 is located between the dehumidifier 12 and the exhaust box 14. The cyclone dust collector 16 is internally connected with a dust removal air intake fan blade 17. The support box 11 is stably installed and placed in a drying kiln for the production of fireproof calcium silicate boards. The dehumidifier 12, the exhaust box 14, the exhaust pipe 15, and the cyclone dust collector 16 installed on its upper end are supported by the support box 11. The exhaust mechanism in the exhaust box 14 is started to accelerate the exchange of air containing moisture and dust in the drying kiln with the external air. The exhaust mechanism includes The exhaust motor and the exhaust fan are driven by the exhaust motor output shaft to rotate rapidly to draw air into the exhaust pipe 15. The exhaust pipe 15 is connected to the indoor top through a bracket connected by bolts and a support plate assembly. The final air outlet end of the exhaust pipe 15 is installed on the top of the drying kiln. In the process of air flowing outward along the exhaust pipe 15, the exhaust pipe 15 is connected to the cyclone dust collector 16 through a connecting pipe 31. An air intake box is provided inside the cyclone dust collector 16. The dust removal air intake fan blades 17 are rotated in the air intake box. The rotation of the dust removal air intake fan blades 17 generates a pressure difference inside the air intake box, which draws the air in the exhaust pipe 15 into the cyclone dust collector 16 along the front connecting pipe 31. The cyclone dust collector 16 utilizes Centrifugal force separates the dust in the gas, and the air after the dust is separated is discharged again along the connecting pipe 31 close to the dehumidifier 12 to flow inside the exhaust pipe 15. At this time, the air drives the fan to rotate through the output shaft of the dehumidification air intake motor 13 installed on the surface of the dehumidifier 12 during the flow, thereby drawing the air after dust separation into the dehumidifier 12. The dehumidifier 12 separates the moisture in the air through the principle of condensation. After separating the dust and moisture in the air, the clean air is discharged to the outside, and the dust is separated by the cyclone dust collector 16 before the moisture separation operation is performed, which is beneficial to improve the cleanliness of the interior of the dehumidifier 12, thereby extending the maintenance cycle of the dehumidifier 12 and extending its service life.

[0031] The exhaust pipe 15 is provided with a filtering mechanism for screening large particles of material. The filtering mechanism includes a foreign body screen plate 18, which is fixedly connected to the exhaust pipe 15. The exhaust pipe 15 is slidably connected to a bevel scraper 19. The bevel scraper 19 and the outer surface of the foreign body screen plate 18 fit together. The lower end of the exhaust pipe 15 is rotatably connected to a round rod shaft 21. The dehumidification air intake motor 13, the dust removal air intake fan blades 17 and the outer surface of the round rod shaft 21 are all provided with a chain transmission mechanism for synchronous drive. The chain transmission mechanism includes a first chain drive assembly 22 and a second chain The chain drive assembly 23, the first chain drive assembly 22 is arranged on the outer surface of the dehumidification air intake motor 13 and the dust removal air intake fan blade 17, the second chain drive assembly 23 is arranged on the outer surface of the dust removal air intake fan blade 17 and the round rod shaft 21, the exhaust pipe 15 and the outer surface of the round rod shaft 21 are provided with a crank slider mechanism for driving the inclined scraper 19 to slide back and forth, the crank slider mechanism includes a hollow sliding bracket 24, a cross-shaped slider 25, two strong magnets 26 and a crank mechanism 27, the hollow sliding bracket 24 is fixedly connected to the outer surface of the exhaust pipe 15, the cross-shaped slider 25 The sliding connection is inside the hollow sliding bracket 24, and the two strong magnets 26 are fixedly connected to the cross-shaped slider 25 and the inclined scraper 19 respectively. The crank mechanism 27 is sleeved on the outer surface of the round rod shaft 21. The crank mechanism 27 is rotatably connected to the inside of the cross-shaped slider 25. When the output shaft of the dehumidification intake motor 13 rotates to realize the air intake process of the dehumidifier 12, the output shaft of the dehumidifier 12 synchronously drives the dust removal intake fan blades 17 to rotate through the first chain drive assembly 22. When the dust removal intake fan blades 17 rotate, they will drive the second chain drive assembly 23 sleeved on the surface. The movable round rod shaft 21 rotates, and dust separation, moisture separation and separation of large foreign objects by the foreign body screen plate 18 are carried out simultaneously, which reduces processing time and energy consumption, and makes the treated air cleaner and drier, thereby improving the performance and air quality of the entire air treatment equipment. During the rotation of the round rod shaft 21, the inclined scraper 19 will drive the inclined scraper 19 to slide back and forth to remove foreign objects accumulated on the surface of the foreign body screen plate 18, avoiding blockage and affecting the foreign matter separation function of the foreign body screen plate 18, so that the entire air treatment process can operate uninterruptedly and efficiently.

[0032] The lower end of the exhaust pipe 15 is fixedly connected to a foreign matter collection box 28, and the foreign matter collection box 28 and the foreign matter screen plate 18 are on the same vertical line. The lower end of the exhaust pipe 15 is fixedly connected to two ball bearing supports 29, and the round rod shaft 21 is sleeved inside the two ball bearing supports 29. The upper end of the cyclone dust collector 16 is sleeved with two connecting pipes 31, and the two connecting pipes 31 are both sleeved inside the exhaust pipe 15. The materials blocked and shoveled by the foreign matter screen plate 18 will fall down into the foreign matter collection box 28 for collection. The foreign matter collection box 28 is removed by screwing the bolts to remove the foreign matter. A ball bearing support 29 is installed at the lower end of the exhaust pipe 15. The ball bearing support 29 is used to provide support for the rotation of the round rod shaft 21 and ensure the smoothness of the rotation.

[0033] In response to the problems existing in the prior art, the utility model provides a fireproof calcium silicate board drying kiln dehumidification auxiliary device. During the process of the dehumidification air intake motor 13 output shaft rotating to realize the air intake of the dehumidifier 12, the dehumidifier 12 output shaft drives the dust removal air intake fan blades 17 to rotate synchronously through the first chain drive assembly 22. When the dust removal air intake fan blades 17 rotate, they will drive the round rod rotating shaft 21 to rotate through the second chain drive assembly 23 sleeved on the surface. Dust separation, moisture separation and foreign matter screen plate 18 to separate large foreign matters are carried out simultaneously, reducing processing time and energy consumption, and making the treated air cleaner and drier, thereby improving the performance and air quality of the entire air treatment equipment. During the process of the round rod rotating shaft 21 being driven to rotate, the inclined scraper 19 will drive the inclined scraper 19 to slide back and forth to remove foreign matters accumulated on the surface of the foreign matter screen plate 18, to avoid blockage and thus affecting the foreign matter separation function of the foreign matter screen plate 18, so that the entire air treatment process can operate uninterruptedly and efficiently.

[0034] Working principle:

[0035] The first step is to stably install the support box 11 in the drying kiln for the production of fireproof calcium silicate board, and provide support for the dehumidifier 12, exhaust box 14, exhaust pipe 15 and cyclone dust collector 16 installed on the upper end of the support box 11. The exhaust mechanism in the exhaust box 14 is started to accelerate the exchange of air containing moisture and dust in the drying kiln with the external air. The exhaust mechanism includes an exhaust motor and an exhaust fan. The exhaust fan is driven by the output shaft of the exhaust motor to rotate rapidly to draw air into the exhaust pipe 15. The exhaust pipe 15 is connected to the top of the room through a bracket connected by bolts and a support plate assembly. The exhaust pipe 15 is finally installed at the top of the drying kiln. When the air flows along the exhaust pipe 1 During the outward flow of the 5-path, the exhaust pipe 15 is connected to the cyclone dust collector 16 through the connecting pipe 31. An air intake box is provided inside the cyclone dust collector 16. The dust removal air intake fan 17 rotates inside the air intake box. The rotation of the dust removal air intake fan 17 generates a pressure difference inside the air intake box, which draws the air in the exhaust pipe 15 into the cyclone dust collector 16 along the connecting pipe 31 at the front end. The cyclone dust collector 16 uses centrifugal force to separate the dust in the gas. The dust-laden gas enters the cylindrical shell tangentially from the connecting pipe 31, and rotates from top to bottom along the inner wall to form an outer vortex. During the rotation, the dust is thrown to the wall of the device under the action of centrifugal force, and slides down along the wall to the collection hopper provided at the lower end. At the same time, part of the dust is removed. The airflow is blocked at the bottom and bent upward to form an inner vortex, which is discharged from the exhaust port at the upper end of the cyclone dust collector 16. Since the mass of dust is greater than that of gas, it is easier to be separated under the action of centrifugal force, thereby achieving gas-solid separation and purifying the gas. The air after the dust is separated is discharged again along the connecting pipe 31 close to the dehumidifier 12 to flow inside the exhaust pipe 15. At this time, the air is driven by the output shaft of the dehumidification air intake motor 13 installed on the surface of the dehumidifier 12 to rotate, thereby drawing the air after dust separation into the dehumidifier 12. The dehumidifier 12 separates moisture from the air through the principle of condensation. The condensing dehumidifier 12 has a compressor and a heat exchanger. The air is sucked in by the fan and flows through the low-temperature During the evaporation, the gaseous water is cooled and liquefied into liquid water, and flows into the water tank along the pipeline. The dry air is then heated by the condenser and sent back to the room. The dehumidifier 12 uses desiccant, such as calcium chloride, silica gel, etc., to absorb moisture in the air through physical adsorption or chemical reaction (when the desiccant is saturated, some products can be regenerated by heating, etc., releasing moisture to restore moisture absorption capacity, thereby reducing air humidity). After separating dust and moisture from the air through the above process, the clean air is discharged to the outside, and the dust is separated by the cyclone dust collector 16 before the moisture separation operation is performed, which is beneficial to improve the cleanliness of the interior of the dehumidifier 12, thereby extending the maintenance cycle of the dehumidifier 12 and extending its service life.

[0036] In the second step, during the air intake process of the dehumidifier 12 by rotating the output shaft of the dehumidifier intake motor 13, the output shaft of the dehumidifier 12 synchronously drives the dust removal intake fan blades 17 to rotate through the first chain drive assembly 22 (the first chain drive assembly 22 and the second chain drive assembly 23 are both composed of two sprockets and a chain, the sprockets are sleeved on the outer surface of the rotating component, and the chains are sleeved on the outer surfaces of the two sprockets, thereby realizing synchronous transmission. The difference between the second chain drive assembly 23 and the first chain drive assembly 22 is that the second chain drive assembly 23 drives the large sprocket through the small sprocket to realize transmission, forming a deceleration transmission ratio), and the dust removal intake fan blades 17 rotate to perform cyclone dust removal. During the air intake operation of the dust collector 16, the dust removal air intake fan blades 17 transmit power again through the second chain drive assembly 23 sleeved on the surface, thereby driving the round rod shaft 21 to rotate. The power transmission mode of the first chain drive assembly 22 and the second chain drive assembly 23 reduces the setting of the power source, which is beneficial to saving the production cost. At one end of the connecting pipe 31 arranged near the air intake end of the cyclone dust collector 16 inside the exhaust pipe 15, a foreign matter screen plate 18 is installed by screwing the bolts. When the air carrying dust is in the circulation process, the foreign matter screen plate 18 is used to screen and block large foreign matter, thereby separating the foreign matter from the air first, thereby avoiding hard particles from entering the air. Hard foreign matter spirally circulates inside the cyclone dust collector 16, thereby repeatedly bumping against the inner wall of the cyclone dust collector 16 and increasing wear. During the rotation of the round rod shaft 21, the crank mechanism 27 (the crank mechanism 27 is composed of a turntable and a connecting rod, the connecting rod is eccentrically connected to the inside of the turntable, the turntable is sleeved on the outer surface of the round rod shaft 21, and the connecting rod is rotatably connected to the inside of the cross-shaped slider 25) is used to reciprocate and pull the cross-shaped slider 25 to slide in the hollow sliding bracket 24. A strong magnet 26 is installed at the end of the cross-shaped slider 25 close to the inclined scraper 19. The exhaust pipe 15 is made of aluminum material, and aluminum material has non-magnetic properties. The reciprocating sliding of the cross-shaped slider 25 attracts and pulls the inclined scraper 19 to slide back and forth. The upper and lower ends of the inclined scraper 19 are inclined. The reciprocating sliding of the inclined scraper 19 will remove the foreign matter accumulated on the surface of the foreign matter screen plate 18 to prevent it from being blocked and affecting the foreign matter separation function of the foreign matter screen plate 18. The material blocked and removed by the foreign matter screen plate 18 will fall down into the foreign matter collection box 28 for collection. The foreign matter collection box 28 is removed by screwing the bolts to remove the foreign matter. A ball bearing support 29 is installed at the lower end of the exhaust pipe 15. The ball bearing support 29 is used to provide support for the rotation of the round rod shaft 21 and ensure the smoothness of the rotation.

[0037] Example 1: Basic type (suitable for small and medium-sized drying kilns):

[0038] This embodiment is designed for a drying kiln with a volume of ≤500m³. The core structure includes:

[0039] Support system: 10mm thick Q235 steel plate is used to weld the support box 11, and the bottom is fixed to the concrete foundation through M20 expansion bolts. The flatness error is controlled within ±2mm.

[0040] Dehumidification module: Dehumidifier 12 uses a CFZ-50 industrial dehumidifier (rated dehumidification capacity 50 L / h) and is secured to the upper end of the support housing 11 with four sets of M12 bolts. The evaporator fins are spaced 2 mm apart to reduce dust adhesion. The dehumidification air intake motor 13 uses a Y2-132M-4 three-phase asynchronous motor (7.5 kW) and is rigidly connected to the dehumidifier's air inlet via a flange.

[0041] Dust removal components: Cyclone dust collector 16 uses a CLT / A-4.5 model (handling air volume 8000 m³ / h), with a cylindrical section diameter of 450 mm and a cone angle of 60°. It is secured to the left side of support housing 11 via a steel bracket, with a horizontal spacing of 1.2 m from the dehumidifier air inlet. The dust removal air intake fan 17 is made of 304 stainless steel (300 mm diameter, three blades) and is mounted in the air intake pipe via a double-row angular contact bearing, with axial play ≤ 0.1 mm.

[0042] Filtration and drive mechanism: The exhaust pipe 15 uses a Φ200mm seamless steel pipe, with a 10mm thick stainless steel foreign body screen plate 18 (screen hole Φ8mm, open area ratio 45%) fixed inside by a clip. The inclined scraper 19 is made of wear-resistant cast iron, and the gap between it and the screen plate is 0.3-0.5mm. In the chain drive system, the first chain drive assembly 22 uses a 08B chain (pitch 12.7mm), the driving sprocket (Φ100mm) is connected to the shaft of the dehumidification air intake motor 13, and the driven sprocket (Φ200mm) is installed on the shaft of the dust removal air intake fan 17, achieving a 1:2 reduction transmission; the second chain drive assembly 23 uses a 10A chain (pitch 15.875mm), the driving sprocket (Φ150mm) is coaxially arranged with the dust removal fan, and the driven sprocket (Φ300mm) is installed at the end of the round rod shaft 21, with a transmission ratio of 2:1.

[0043] Operational Process: After the equipment is started, the dehumidification air intake motor 13 rotates at 1450 r / min. The first chain assembly drives the dust removal air intake fan 17 to rotate at 725 r / min, creating a negative pressure field within the cyclone dust collector. Dust-laden air enters at a tangential velocity of 18 m / s for centrifugal separation (separation efficiency ≥ 95% @ 10 μm dust). After being treated by the dehumidifier 12 (outlet air dew point ≤ 10°C), the purified air enters the exhaust pipe, where it passes through the foreign matter screen 18, intercepting foreign matter with a particle size ≥ 8 mm. Simultaneously, the second chain assembly drives the circular rod shaft 21 to rotate at 362 r / min. The crank slider mechanism drives the inclined scraper 19 to slide back and forth at a speed of 0.8 m / s, removing approximately 200 g of deposits from the screen surface per hour.

[0044] Example 2: Enhanced intelligent processing (applicable to large drying kilns):

[0045] For drying kilns with a volume greater than 500m³, the following optimizations are performed based on Example 1:

[0046] Upgrade components:

[0047] Foreign matter collection system: A drawer-type foreign matter collection box 28 (volume 5L) is added to the lower end of the exhaust pipe 15. It uses transparent PC side panels and an MSP430 weight sensor (accuracy ±5g) is installed at the bottom. When the collected amount reaches 3kg, an audible and visual alarm is triggered.

[0048] Transmission reinforcement: The round rod shaft 21 is made of 45# steel with quenching and tempering treatment (hardness 220-250HB), and is positioned by two SN516 ball bearing supports 29 (radial runout ≤ 0.05mm). The crank mechanism 27 sleeve is made of SF-1 self-lubricating composite material with a friction coefficient ≤ 0.15.

[0049] Air path optimization: The upper end of the cyclone dust collector 16 is connected to the exhaust pipe via two 100mm Φ inclined connecting pipes 31 (30° inclination). A D371X-16 butterfly valve is installed at the interface to adjust air volume distribution (dust collection air volume: direct exhaust air volume = 3:1). A 3mm thick porous flow equalizer (30% open area) is installed inside the exhaust box 14, improving airflow uniformity to over 90%.

[0050] Intelligent control: Equipped with S7-1200 PLC control system, the speed of the dehumidification air intake motor 13 (500-1500r / min continuously variable speed) is adjusted in real time through the temperature and humidity sensor in the kiln (measuring range 0-100%RH, accuracy ±2%). When the pressure difference before and after the foreign matter screen plate 18 is ≥500Pa, it automatically switches to the strong cleaning mode (the reciprocating frequency of the scraper is increased by 50%).

[0051] Performance improvement: Compared with Example 1, this embodiment has reduced energy consumption, improved dust removal rate (≥5μm particles), reduced the number of shutdowns caused by foreign matter blockage to less than 0.3 times / month, and increased the surface qualification rate of the plate to.

[0052] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A dehumidification auxiliary device for a fireproof calcium silicate board drying kiln, comprising a supporting box (11), wherein the upper end of the supporting box (11) is provided with a dehumidification mechanism for separating moisture, wherein the dehumidification mechanism comprises a dehumidifier (12) and a dehumidification air intake motor (13), wherein the dehumidifier (12) is fixedly connected to the upper end of the supporting box (11), wherein the dehumidification air intake motor (13) is fixedly connected to the outer surface of the dehumidifier (12), wherein the upper end of the supporting box (11) is provided with an exhaust mechanism for air separation and filtration, wherein the exhaust mechanism comprises an exhaust box (14) and an exhaust pipe (15), wherein the exhaust box (14) is fixedly connected to the upper end of the dehumidifier (12), and wherein the exhaust pipe (15) is fixedly connected to the upper end of the exhaust box (14), wherein the exhaust box (14) is fixedly connected to the upper end of the dehumidifier (12), and wherein the exhaust pipe (15) is fixedly connected to the upper end of the exhaust box (14), wherein the exhaust box (14) is fixedly connected to the upper end of the dehumidifier (12), and wherein the exhaust pipe (15) is fixedly connected to the upper end of the exhaust box (14), wherein the exhaust box (14) is fixedly connected to the upper end of the dehumidifier (12). The upper end of the supporting box (11) is provided with a dust removal mechanism for dust separation, and the dust removal mechanism includes a cyclone dust collector (16). The cyclone dust collector (16) is fixedly connected to the upper end of the supporting box (11), and the inside of the cyclone dust collector (16) is rotatably connected to a dust removal air intake fan blade (17). The inside of the exhaust pipe (15) is fixedly connected to a foreign matter screen plate (18), and the inside of the exhaust pipe (15) is slidably connected to an inclined scraper (19).

2. The fireproof calcium silicate board drying kiln dehumidification auxiliary device according to claim 1, characterized in that: The lower end of the exhaust pipe (15) is rotatably connected to a round rod rotating shaft (21), and the outer surfaces of the dehumidification air intake motor (13), the dust removal air intake fan blades (17) and the round rod rotating shaft (21) are all provided with a chain transmission mechanism for synchronous driving, and the chain transmission mechanism includes a first chain driving assembly (22) and a second chain driving assembly (23); The first chain drive assembly (22) is arranged on the outer surface of the dehumidification air intake motor (13) and the dust removal air intake fan blade (17), and the second chain drive assembly (23) is arranged on the outer surface of the dust removal air intake fan blade (17) and the round rod rotating shaft (21). The outer surface of the exhaust pipe (15) and the round rod rotating shaft (21) is provided with a crank slider mechanism for driving the inclined scraper (19) to slide back and forth. The crank slider mechanism includes a hollow sliding bracket (24), a cross-shaped slider (25), two strong magnets (26) and a crank mechanism (27). The hollow sliding bracket (24) is fixedly connected to the outer surface of the exhaust pipe (15).

3. The fireproof calcium silicate board drying kiln dehumidification auxiliary device according to claim 2, characterized in that: The cross-shaped slider (25) is slidably connected inside the hollow sliding bracket (24); The two strong magnets (26) are respectively fixedly connected inside the cross-shaped slider (25) and the inclined scraper (19).

4. The fireproof calcium silicate board drying kiln dehumidification auxiliary device according to claim 2, characterized in that: The crank mechanism (27) is sleeved on the outer surface of the round rod shaft (21); The crank mechanism (27) is rotatably connected inside the cross-shaped slider (25).

5. The fireproof calcium silicate board drying kiln dehumidification auxiliary device according to claim 1, characterized in that: A foreign matter collection box (28) is fixedly connected to the lower end of the exhaust pipe (15); The foreign matter collecting box (28) and the foreign matter screening plate (18) are located on the same vertical line.

6. The fireproof calcium silicate board drying kiln dehumidification auxiliary device according to claim 2, characterized in that: The lower end of the exhaust pipe (15) is fixedly connected to two ball bearing supports (29), and the round rod shaft (21) is sleeved inside the two ball bearing supports (29); The upper end of the cyclone dust collector (16) is sleeved with two connecting pipes (31), and the two connecting pipes (31) are both sleeved inside the exhaust pipe (15).

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