Water permeable brick production equipment

Abstract

The invention relates to the technical field of water permeable bricks, in particular to water permeable brick production equipment which comprises a stirring machine, a conveying belt and a pressing forming machine. The stirring machine is used for uniformly stirring materials and water, the conveying belt is used for conveying the materials stirred by the stirring machine to the brick pressing and molding machine, and the brick pressing and molding machine is used for pressing the materials into water permeable bricks; an atomizing nozzle is arranged on the conveying belt, the atomizing nozzle is connected with an external water pump, a detection device electrically connected with the water pump is installed on the conveying belt, and the detection device is used for detecting the water content of materials on the conveying belt so as to adjust the water supply amount of the water pump. By arranging the detection device and the atomizing nozzle, after data detected by the two online infrared moisture meters are analyzed in the PLC system, the PLC system controls the atomizing nozzle to spray water to materials on the conveying belt, so that the influence of evaporation on the water-cement ratio of the materials is reduced, and meanwhile, it is guaranteed that the materials can obtain moisture uniformly through the protection device.

Description

Technical Field

[0001] This invention relates to the field of permeable brick technology, specifically to a permeable brick production equipment. Background Technology

[0002] Currently, there is a type of brick called permeable brick, which is a new type of green and environmentally friendly building material. The raw materials are mainly environmentally friendly materials such as cement, sand, slag, and fly ash, which are formed under high pressure. The whole brick is compressed in one go, without being pressed in layers, forming a homogeneous brick that is consistent from top to bottom and does not have layers.

[0003] Prepare the ingredients according to the formula, then pour the prepared materials into the mixer via a material hoisting bucket. Add water and materials to the mixer and mix. The mixed material is then placed on a conveyor belt without moisture retention and transported to a brick pressing machine for pressing. The brick blanks are then transported by forklift to a curing kiln for curing. During curing, the brick blanks become dry blanks, which are the finished products and can be stored in the open air for further curing.

[0004] For permeable bricks, the water-cement ratio is a crucial factor affecting their strength. A lower water-cement ratio leads to a decrease in the strength of the permeable bricks. To ensure the strength of the finished permeable bricks, the water-cement ratio is typically between 0.28 and 0.34. When the water-cement ratio is less than 0.28, the cement paste has poor fluidity and cannot effectively coat the aggregate, resulting in a decrease in the strength of the finished permeable bricks. When the water-cement ratio is greater than 0.34, the cement coating on the outside of the material will flow and deposit at the bottom of the brick, clogging the pores and affecting the permeability of the permeable bricks.

[0005] During the process of transferring materials from the mixer to the brick-making machine via conveyor belt, the lack of moisture retention measures can easily lead to evaporation of the materials, causing changes in the water-cement ratio and ultimately reducing the quality of the permeable bricks. Specifically:

[0006] The existing brick-making machines are typically located in workshops without dedicated cooling equipment, leading to high temperatures during hot summer months. For example, the ambient temperature inside the workshop can reach 30 degrees Celsius or even higher in summer. Consequently, in such a high-temperature environment, the moisture on the material evaporates at a rapid rate. Although the material transport process on the conveyor belt usually takes only about 6 seconds, the granular nature of the material and its spread on the conveyor belt result in a large surface area for evaporation. Therefore, even in just 6 seconds, the water-to-cement ratio of the material is significantly affected by evaporation. If excessive water is added during the material mixing process, raising the water-to-cement ratio above 0.34, the water-to-cement ratio after evaporation on the conveyor belt will remain between 0.28 and 0.34. However, since moisture evaporation mainly occurs on the material surface, adding excessive water during the mixing process will cause the overall water-to-cement ratio of the permeable brick to exceed 0.34, reducing its permeability.

[0007] To address this, a permeable brick production equipment is proposed. By monitoring changes in the moisture content of the material and performing spray water replenishment, the impact of evaporation on the water-cement ratio of the material is reduced, thus ensuring the processing quality of the permeable bricks. Summary of the Invention

[0008] The purpose of this invention is to provide a permeable brick production equipment. By setting up a detection device and an atomizing nozzle, after the data detected by two online infrared moisture meters are analyzed in the PLC system, the PLC system controls the atomizing nozzle to spray water onto the material on the conveyor belt, so as to reduce the impact of evaporation on the water-cement ratio of the material and control the water-cement ratio of the material to be maintained between 0.28 and 0.34, thereby improving the production and processing quality of permeable bricks. At the same time, a protective device ensures that the material can obtain moisture evenly, thus solving the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A permeable brick production equipment, comprising:

[0011] Mixer, conveyor belt, compression molding machine;

[0012] The mixer is used to mix the materials and water evenly, and the conveyor belt is used to transport the materials mixed by the mixer to the brick pressing machine, which is used to press the materials into permeable bricks.

[0013] The conveyor belt is equipped with atomizing nozzles, which are connected to an external water pump. The conveyor belt is also equipped with a detection device that is electrically connected to the water pump. The detection device is used to detect the moisture content of the material on the conveyor belt in order to adjust the water delivery rate of the water pump. The conveyor belt is also equipped with a protective device to ensure that the material receives uniform moisture.

[0014] By monitoring changes in the moisture content of the material, the atomizing nozzles are controlled to replenish water, ensuring the water-cement ratio of the material and thus guaranteeing the strength performance of the pressed permeable bricks. Specifically, when the water-cement ratio of the material decreases, the atomizing nozzles automatically spray water mist to increase the water-cement ratio; when the water-cement ratio of the material is normal, the detection device will not activate, and water mist will not be sprayed. Therefore, there is no need to worry that the replenished water will affect the permeability of the permeable bricks when the evaporation rate is low.

[0015] Preferably, the detection device includes two online infrared moisture meters installed on a conveyor belt. The probes of the online infrared moisture meters are aimed at the material on the conveyor belt. Two online infrared moisture meters are installed on the conveyor belt, one of which is installed near the discharge port of the mixer, and the other is installed near the inlet of the spray chamber. Both online infrared moisture meters are electrically connected to a water pump.

[0016] The online infrared moisture meter detects the moisture content within a 1.2mm thickness of the material's surface, enabling real-time monitoring of moisture changes on the conveyor belt. When the moisture content decreases, the infrared moisture meter sends a signal to the PLC control panel, activating an external water pump to deliver water to the atomizing nozzles. The nozzles then spray water mist, replenishing the material's moisture content and adjusting the water-to-ash ratio.

[0017] The online infrared moisture meter transmits real-time data on the moisture content of the material on the conveyor belt to an electrically connected water pump, monitoring changes in the moisture content in real time and controlling the amount of water mist sprayed based on the evaporated moisture. For ease of understanding, a specific operational example is given below:

[0018] Two online infrared moisture meters are defined: meter A is located near the mixer outlet, and meter B is located near the spray chamber inlet. First, both A and B monitor the moisture content of the material on the conveyor belt and upload the data to the PLC system. Then, the moisture content monitored by A is compared with the moisture content monitored by B. When the difference between the two values ​​exceeds a set range, the PLC system determines that the water-cement ratio does not meet the standard and starts the water pump to supply water to the nozzles, thus replenishing the material. Since the material on the conveyor belt is constantly being transported, the data from the online infrared moisture meters changes in real time. We need to calculate the time required for the material to reach the two online infrared moisture meters based on the conveyor belt speed and input this time as a delay into the PLC control console. This ensures that both online infrared moisture meters are detecting the same material at the two detection points, and the moisture is replenished accordingly.

[0019] When the required moisture content of the material is constant and the material formula remains unchanged, we can simply turn on the online infrared moisture meter near the spray chamber and input the required moisture content of the material in the formula into the PLC control console. If the detected moisture content of the material on the conveyor belt does not meet the requirements of the formula, water will be sprayed, and the amount of water to be added will be determined by subtracting the required moisture content from the detected moisture content.

[0020] Preferably, the protective device includes a spray chamber fixedly installed on the conveyor belt, the atomizing nozzle fixedly installed on the inner side of the spray chamber, and an anti-drip baffle fixedly installed inside the spray chamber to prevent water droplets accumulating on the inner side wall of the spray chamber from dripping down onto the conveyor belt.

[0021] During spray water replenishment, the airflow generated by the factory's ventilation system may disperse the water mist. This dispersion means some water mist may not reach the materials, resulting in a reduced water replenishment effect. By installing a spray chamber, this dispersion caused by external air disturbances can be avoided. When water mist is sprayed from the spray chamber, the two entrances / exits for the conveyor belt effectively isolate most external airflow interference, ensuring the water mist is evenly distributed across the material surface on the conveyor belt.

[0022] When the air humidity in the spray chamber is too high, water droplets will precipitate on the inner side. These droplets on the inner walls of the inlet and outlet sides of the spray chamber conveyor belt may drip down the inlet and outlet door frames onto the material surface on the conveyor belt, causing an excessively high water-cement ratio and affecting the permeability of the permeable bricks. To prevent this, anti-drip baffles are installed inside the spray chamber. These baffles are arched and fixed to the side wall door frames of the spray chamber with screws, extending to the outside of the conveyor belt on both sides, with the side closest to the spray chamber wall inclined. This is to prevent water droplets accumulating on the inner side wall of the spray chamber from dripping down onto the conveyor belt.

[0023] Preferably, the atomizing nozzle is mounted on the top side of the spray chamber.

[0024] The atomizing nozzle is connected to a water pump. After the pump starts, water is atomized into a mist through the nozzle and sprayed from the top of the spray chamber. Because the atomizing nozzle is installed at the top of the spray chamber and aimed at the conveyor belt, even when the required water volume increases, the spray center of the water mist remains on the material on the conveyor belt surface. This prevents uneven spraying caused by changes in water pressure, thus avoiding a decrease in the water replenishment effect.

[0025] In addition to mounting the atomizing nozzle on the top side of the spray chamber, it can also be mounted on the side wall inside the spray chamber to achieve other effects, as follows:

[0026] The atomizing nozzle is placed on the side wall of the spray chamber, causing it to spray water mist at a certain angle upwards. The water mist follows a parabolic motion, falling downwards after reaching the top and then evenly dispersing onto the material surface. When the atomizing nozzle is installed at the top of the spray chamber, assuming the water mist is sprayed out in a cone shape, it is affected by air resistance. After traveling a certain distance, the kinetic energy of the water mist is completely dissipated, and it continues to fall evenly and slowly under the influence of gravity.

[0027] Compared to mounting the atomizing nozzle vertically downwards at the top of the spray chamber, mounting it on the sidewall transforms the water mist spray path into a parabola. After reaching the apex of the parabola, the water mist falls downwards. This means that during the water droplet's journey from the nozzle to the material, this design utilizes the same height difference twice. In other words, compared to a design with the atomizing nozzle at the top of the spray chamber, this design experiences twice as much air resistance within the same height difference, thus eliminating the initial kinetic energy of the water mist at a lower height. However, changes in the water flow rate alter the parabolic trajectory of the sprayed water mist, causing the center of the sprayed water mist to shift, resulting in uneven humidity of the material on the conveyor belt. Therefore, an angle adjustment device for the atomizing nozzle is required. The center of the water mist refers to the position where the water droplet lands along the parabolic trajectory after being ejected along the nozzle axis. Consider a water mist of mass m undergoing projectile motion with an initial velocity V and an angle θ between the initial velocity and the horizontal direction. The air resistance is expressed as f = -kv², and the acceleration due to gravity is g. Taking the initial launch point as the origin, derive the equation of the water mist's trajectory. The analytical solution to the trajectory equation is given by (λ being any point on the projectile trajectory):

[0028]

[0029]

[0030] The coordinate axis position of the analytical solution λ of the trajectory equation is the point where the water mist just begins to fall at a constant speed and is parallel to the nozzle. The obtained trajectory equation of the water mist is written into the PLC control panel, and the trajectory of the water mist is calculated based on the change in the water inflow, and the spray angle of the nozzle is adjusted accordingly.

[0031] Preferably, the adjustment device includes a servo motor installed at the bottom of the outside of the spray nozzle. The servo motor is electrically connected to two online infrared moisture meters. A take-up reel is installed on the output end of the motor. A belt is fixedly installed on the atomizing nozzle, and the other end of the belt is fixed to the take-up reel.

[0032] When the moisture meter detects a deviation in moisture content requiring replenishment, it transmits a signal to the PLC control console. The PLC then sends signals to the water pump and servo motor, activating the water pump and rotating the servo motor. The larger the water volume, the more the servo motor adjusts its rotation angle. For example, a larger water volume results in a more vertical spray angle from the atomizing nozzle, keeping the spray center on the conveyor belt and ensuring even distribution of the water mist across the material surface.

[0033] Preferably, the spray chamber is equipped with a limiting plate for restricting the oscillation of the atomizing nozzle.

[0034] After the atomizing nozzle is activated, its angle is adjusted according to the water flow rate. A limit plate restricts the nozzle's spray angle to prevent the water mist spray center from shifting, ensuring the water mist falls evenly onto the material surface. After the water pump starts, based on signals from the PLC control panel, the servo motor rotates, driving the winding wheel to tighten the belt. During this tightening process, the atomizing nozzle may shift laterally, affecting the water spraying effect. The limit plate prevents this lateral shift, ensuring the water mist spray center remains on the material.

[0035] Preferably, pulleys are installed on the outer side wall of the sprayer.

[0036] After the adjustment device is activated, the servo motor rotates, driving the take-up wheel to wind up the belt. The belt then turns at a 90-degree angle along the spray chamber wall via pulleys. Installing pulleys reduces friction between the belt and the spray chamber wall, allowing the servo motor to drive the belt with less power. The pulleys also prevent direct contact between the belt and the spray chamber wall, reducing wear and extending the belt's lifespan.

[0037] Preferably, the spray chamber adopts an arched design.

[0038] First, because the atomizing nozzles spray water mist at a certain cone angle and initial velocity before evenly dispersing, the dome effectively raises the height of the atomizing nozzles. This prevents the sprayed water mist from being concentrated on the material in the middle of the conveyor belt due to insufficient spray angle caused by close proximity, thus avoiding uneven humidity. Second, the water mist sprayed from the atomizing nozzles is not completely absorbed by the material. The water mist dispersed in the spray chamber can easily cause the air inside the spray chamber to reach saturation vapor pressure. When the air inside the spray chamber reaches saturation vapor pressure, the excess water vapor in the air will precipitate on the surface of the spray chamber walls, forming water droplets. By choosing a dome, the water droplets precipitated on the top of the spray chamber will flow along the dome to the walls on both sides, preventing them from dripping onto the surface of the material on the conveyor belt and causing uneven humidity.

[0039] Preferably, a drain pipe is installed at the bottom of the atomizing chamber, and both the drain pipe and the water pump are connected to an external water tank. During operation in hot weather, the material on the conveyor belt continuously evaporates moisture. Water mist is continuously sprayed from the spray chamber to replenish the material surface. Water mist that is not absorbed by the material causes the air humidity inside the spray chamber to exceed saturation. The excess water vapor then precipitates on the inner wall of the spray chamber, forming water droplets that flow to the bottom and accumulate. Directly discharging the accumulated water inside the spray chamber is a significant waste of water resources. By tilting the bottom of the spray chamber at a certain angle and installing a drain pipe at the bottom of the tilt to collect the accumulated water, the filtered water is then added to the external water tank connected to the water pump for reuse, thus avoiding water waste and conserving water resources.

[0040] In summary, the advantages of this invention compared to the prior art are as follows:

[0041] 1. By setting up moisture meters one and two to detect the moisture content of the material on the conveyor belt, the detected moisture content is transmitted to the PLC system. Then, using the moisture content of the material monitored by A as a standard value, it is compared with the moisture content of the material monitored by B. When the difference between the two detected values ​​exceeds the set range, the PLC system determines that the water-cement ratio does not meet the standard. Therefore, the water pump is started, supplying water to the nozzles, which then replenish the material with water. This allows for accurate and rapid determination of whether the material on the conveyor belt needs water replenishment, and the amount of water to be replenished. This avoids the performance of permeable bricks being affected by changes in the water-cement ratio, thus improving the production and processing quality of permeable bricks.

[0042] 2. By placing the spray chamber at the end of the conveyor belt in the direction of transport, the airflow generated by the factory's ventilation system can be prevented from dispersing the water mist during spray water replenishment. If the water mist is dispersed, some of it will not reach the materials, resulting in a poor water replenishment effect. The spray chamber avoids this dispersion caused by external air disturbances. When spraying water mist from the chamber, the two entrances / exits for the conveyor belt effectively isolate most external airflow interference, ensuring the water mist is evenly distributed on the material surface. This guarantees that the sprayed water mist is undisturbed and evenly distributed on the material surface.

[0043] 3. By placing the atomizing nozzles at the top inside the spray chamber, the spray center of the water mist is not affected by the water flow rate; however, this places certain requirements on the height of the spray chamber walls. Placing the atomizing nozzles on the side inside the spray chamber, with the nozzles tilted upwards at a certain angle, significantly reduces the height of the spray chamber. However, changes in the water inflow will affect the parabolic trajectory of the mist, causing a shift in the spray center and resulting in uneven moisture content of the material. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0045] Figure 2 This is a front plan view of the first embodiment of the present invention;

[0046] Figure 3 This is a structural diagram of the spray chamber in the first embodiment of the present invention;

[0047] Figure 4 This is a front plan view of the second embodiment of the present invention;

[0048] Figure 5This is a front view of the spray chamber according to the second embodiment of the present invention;

[0049] Figure 6 This is a schematic diagram of the atomizing nozzle structure in the second embodiment of the present invention.

[0050] In the diagram: 1. Mixer; 2. Conveyor belt; 3. Spray chamber; 4. Online infrared moisture meter; 301. Atomizing nozzle; 302. Anti-drip baffle; 303. Limiting plate; 401. Moisture meter one; 402. Moisture meter two; 5. Drain pipe; 6. Material transport direction; 7. Servo motor; 801. Pulley one; 802. Pulley two; 9. Belt winding; 10. Rewinding wheel. Detailed Implementation

[0051] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0052] In the following embodiments, the online infrared moisture meter 4 is divided into: moisture meter 401 located near the outlet of the mixer 1, and moisture meter 402 located near the inlet of the spray chamber 3.

[0053] Example 1:

[0054] like Figures 1 to 3 As shown, this is a first specific embodiment of the invention, in which a spray chamber 3 is installed at the end of the material transport direction 6. The spray chamber 3 is equipped with an atomizing nozzle 301 and an anti-drip baffle 302. The atomizing nozzle 301 is installed at the top of the spray chamber 3, with its downward-facing tail connected to an external water pump; the anti-drip baffle 302 is installed at the top of the two side door frames inside the spray chamber 3. A drain pipe 5 is installed at the bottom of the spray chamber 3. Moisture meter 1 401 and moisture meter 2 402 are both HYB-8D model online infrared moisture meters, installed at the discharge port of the mixer 1 and in front of the spray chamber 3 respectively, both aimed at the material on the conveyor belt 2.

[0055] Moisture meter 1 (401) and moisture meter 2 (402) detect the moisture content of the material on conveyor belt 2 at the discharge port of mixer 1. Moisture meter 2 (402) detects the moisture content of the material before it enters spray chamber 3. Moisture meter 1 (401) and moisture meter 2 (402) are electrically connected to an external water pump, and both are electrically connected to the PLC control console.

[0056] During hot summer weather, the temperature inside the factory rises. After the mixer 1 mixes the material, it is discharged onto the conveyor belt 2. The moisture content of the material on the conveyor belt 2 is detected by moisture meter 401. When the material is transported to the spray chamber 3, it is detected by moisture meter 402. Since they are both detecting the moisture content of the material in front of them in real time, we need to input the conveying speed of the conveyor belt 2 and the distance between the moisture meters 401 and 402 in the PLC control panel to calculate the time of the material at the two detection points on the conveyor belt 2. The obtained time is the delay time of moisture meter 402.

[0057] For example, if the detection points of moisture meter 1 (401) and moisture meter 2 (402) are 5m apart, and the conveyor belt 2 has a conveying speed of 1m / s, the material transport time between these two detection points is 5s. Therefore, by adding a 5s delay to moisture meter 2 (402) in the PLC control panel, moisture meters 1 (401) and 2 (402) will both detect the moisture content of the same portion of material. When moisture meter 1 (401) detects the moisture content of the material on conveyor belt 2, the detected data is uploaded to the PLC control panel with a 5s delay. After 5s, the material is transported by conveyor belt 2 to moisture meter 2 (402), where it detects the moisture content and uploads the data to the PLC control panel. This data is compared with the data uploaded by moisture meter 1 (401). If the difference between the data from moisture meter 1 (401) and the data from moisture meter 2 (402) exceeds a specified moisture content change threshold, an externally connected water pump will start, adjusting the spray volume according to the magnitude of the difference. During long-term operation, the water mist cannot be completely absorbed by the material, and water accumulates at the bottom of the spray chamber 3. The accumulated water is filtered through the drain pipe 5 and then added to the external water tank to achieve water recycling.

[0058] Example 2:

[0059] like Figures 4 to 6As shown, the atomizing nozzle 301 is placed on the side wall of the spray chamber 3, causing the nozzle to spray water mist at a certain angle upwards in a parabolic shape. After the kinetic energy is exhausted, the mist disperses and falls downwards, then evenly scatters on the material surface. When the atomizing nozzle 301 is installed at the top of the spray chamber 3, assuming the water mist is sprayed in a cone shape, due to air resistance, after the kinetic energy of the water mist is exhausted, it continues to fall evenly and slowly under the action of gravity. Compared with the atomizing nozzle 301 being installed vertically downwards at the top of the spray chamber 3, installing the atomizing nozzle 301 on the side wall can transform the spray path of the water mist into a parabola, with some overlap in the path, which can eliminate the initial kinetic energy of the water mist at a lower height. Under the same water flow rate, the height can be reduced by approximately 0.5h compared to installing the atomizing nozzle 301 at the top of the spray chamber 3. The shortening of the spray path can reduce the height of the spray chamber 3, saving material costs. The drawback is that when the atomizing nozzle 301 is installed on the side wall, changes in the water inlet volume can also cause the center of the water mist spray to shift.

[0060] A servo motor 7 needs to be electrically connected via moisture meters 401 and 402. The PLC system, based on data detected by moisture meters 401 and 402, controls the servo motor 7 to rotate, driving the take-up roller 10. The rotation of the take-up roller 10 winds up and unwinds the conveyor belt 9. The conveyor belt 9 is wound around the atomizing nozzle 301, which is constrained by the limiting plate 303. After the conveyor belt 9 is wound up and unwinds, the pulleys 801 and 802 tighten or loosen the belt 9, allowing the atomizing nozzle 301 to rotate at a specific angle. Adjusting the nozzle angle ensures the spray center remains on the conveyor belt 2. This means that additional adjustment devices are needed, such as the motor used in this embodiment, which increases the equipment cost.

[0061] Compared to Embodiment 2, Embodiment 1, by placing the atomizing nozzle 301 at the top, effectively sprays water mist evenly onto the material surface and prevents the spray center from shifting with changes in water flow. However, it requires a higher installation height to ensure the sprayed water mist disperses and falls evenly onto the material surface. Increasing the nozzle height necessitates increasing the height of the spray chamber 3, thus raising material costs. Embodiment 2, by installing the atomizing nozzle 301 on the side of the spray chamber 3, effectively reduces the height of the spray chamber 3, saving costs. However, if the water flow changes, the spray center will shift due to the parabolic trajectory of the water mist. Installing an adjustment device on the nozzle would further increase costs and complicate operation; for example, it would require programming and consideration of daily temperature variations.

[0062] Although the beneficial effects of the present invention have been shown in detail and embodiments have been provided in this specification, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A permeable brick production equipment, comprising: Mixer (1), conveyor belt (2), pressing and molding machine; The mixer (1) is used to mix the material and water evenly, and the conveyor belt (2) is used to transport the material mixed by the mixer (1) to the pressing brick machine, which is used to press the material into permeable bricks. Its features are: The conveyor belt (2) is provided with an atomizing nozzle (301) for spraying water onto the material. The atomizing nozzle (301) is connected to an external water pump. The conveyor belt (2) is equipped with a detection device that is electrically connected to the water pump. The detection device is used to detect the moisture content of the material on the conveyor belt (2) in order to adjust the water delivery rate of the water pump. The conveyor belt (2) is provided with a protective device to ensure that the material obtains uniform moisture.

2. The permeable brick production equipment according to claim 1, characterized in that: The detection device includes two online infrared moisture meters (4) installed on the conveyor belt (2). The probes of the online infrared moisture meters (4) are aligned with the material on the conveyor belt (2). There are two online infrared moisture meters (4) installed on the conveyor belt (2). One of the online infrared moisture meters (4) is installed near the discharge port of the mixer (1), and the other online infrared moisture meter (4) is installed near the inlet of the spray chamber (3). The two online infrared moisture meters (4) are electrically connected to the water pump.

3. The permeable brick production equipment according to claim 1, characterized in that: The protective device includes a spray chamber (3) fixedly installed on the conveyor belt (2), the atomizing nozzle (301) fixedly installed on the inner side of the spray chamber (3), and an anti-drip baffle (302) fixedly installed inside the spray chamber (3). The anti-drip baffle (302) is used to prevent water droplets accumulating on the inner wall of the spray chamber (3) from dripping down onto the conveyor belt (2).

4. The permeable brick production equipment according to claim 3, characterized in that: The atomizing nozzle (301) is installed on the top of the inner side of the spray chamber (3).

5. The permeable brick production equipment according to claim 3, characterized in that: The atomizing nozzle (301) is movably installed on the inner side wall of the spray chamber (3), and the spray chamber (3) is provided with an adjustment device for adjusting the water mist spraying angle of the atomizing nozzle (301).

6. The permeable brick production equipment according to claim 5, characterized in that: The adjustment device includes a servo motor (7) installed at the bottom of the outside of the spray chamber (3). The servo motor (7) is electrically connected to two online infrared moisture meters (4). A take-up reel (10) is installed on the output end of the motor. A belt (9) is fixedly installed on the atomizing nozzle (301), and the other end of the belt (9) is fixed on the take-up reel (10).

7. A permeable brick production equipment according to claim 4 or 5, characterized in that: The bottom of the atomizing chamber (3) is provided with a drain pipe (5), and both the drain pipe (5) and the water pump are connected to an external water tank.

8. The permeable brick production equipment according to claim 3, characterized in that: The spray chamber (3) adopts an arched design.

9. The permeable brick production equipment according to claim 6, characterized in that: The spray chamber (3) is equipped with a limiting plate 303 for limiting the swing of the atomizing nozzle (301).

10. A permeable brick production equipment according to claim 6, characterized in that: A pulley (8) is installed on the outer wall of the spray chamber (3).

Images