A device for resource utilization of papermaking sludge

Abstract

The present invention is applicable to the treatment of papermaking sludge, and particularly relates to a device for the resource utilization of papermaking sludge. The device includes: a base, on which a belt pulley is rotatably installed, a transmission belt is wound around the belt pulley, and a plurality of material-carrying units are fixedly installed on the transmission belt. A first support is fixedly installed on the base, and a second heating coil and a first heating coil are fixedly installed on the first support. The second heating coil and the first heating coil are sleeved around the periphery of the transmission belt, and the material-carrying unit passes through the second heating coil and the first heating coil. A discharging mechanism and a measuring component are installed on the first support, and the measuring component is used to calculate the water content of the material in the material-carrying unit. A premixing mechanism is fixedly arranged on the base. By setting the premixing mechanism, the present invention can uniformly mix the material, thereby cooperating with the measuring component to measure the water content of the material, and performing dynamic heating adjustment according to the water content of the material, ensuring the stability of the final water content of the material.

Description

Technical Field

[0001] The present invention belongs to the field of papermaking sludge treatment, and particularly relates to a device for the resource utilization of papermaking sludge. Background Art

[0002] Resource utilization refers to the process of converting waste into valuable resources or products to reduce environmental pollution and achieve economic benefits. For papermaking sludge, resource utilization involves multiple steps and technologies aimed at extracting useful components from the sludge or directly converting the sludge into usable materials.

[0003] During the drying process of papermaking sludge, it is necessary to control the humidity. Humidity control is the key to ensuring that the sludge reaches the ideal moisture content, which is very important for subsequent treatment and utilization. If the humidity control is improper, the following problems may occur:

[0004] Over-drying: It may cause the sludge to lose too much moisture and become overly dry, which will not only increase energy consumption but also may change the physical and chemical properties of the sludge, affecting the effect of its resource utilization;

[0005] Insufficient drying: If the moisture content of the sludge is still too high, it may lead to an increase in disposal costs, greater difficulty in resource utilization, and also increase the inconvenience during storage and transportation.

[0006] However, the sludge resource utilization devices provided in the prior art are difficult to accurately control the moisture content of the sludge, resulting in a low resource utilization rate of the sludge. Summary of the Invention

[0007] The purpose of the present invention is to provide a device for the resource utilization of papermaking sludge, aiming to solve the problem that the sludge drying device provided in the prior art is difficult to accurately control the moisture content of the sludge, resulting in a low resource utilization rate of the sludge.

[0008] The present invention is implemented as follows. A device for the resource utilization of papermaking sludge, the device includes:

[0009] A base, on which a pulley is rotatably installed, a transmission belt is wound around the pulley, a plurality of material-carrying units are fixedly installed on the transmission belt, a first support is fixedly installed on the base, a second heating coil and a first heating coil are fixedly installed on the first support, the second heating coil and the first heating coil are sleeved outside the transmission belt, the material-carrying unit passes through the second heating coil and the first heating coil, a discharging mechanism and a measuring component are installed on the first support, the measuring component is used to calculate the moisture content of the material in the material-carrying unit, the discharging mechanism is used to discharge the material in the material-carrying unit, a premixing mechanism is fixedly arranged on the base, and the premixing mechanism is used to uniformly mix the raw materials and convey the materials to the material-carrying unit.

[0010] Preferably, the premixing mechanism includes four groups of auxiliary augers, one group of main augers and one group of premixing cylinders, the premixing cylinder is fixedly mounted on the base, a third bracket and a fourth bracket are fixedly mounted in the premixing cylinder, the third bracket is located above the fourth bracket, the main auger is rotatably mounted on the third bracket and the fourth bracket, the auxiliary augers are also rotatably mounted on the third bracket and the fourth bracket, and the four groups of auxiliary augers are evenly distributed on the periphery of the main auger, the part of the main auger located below the fourth bracket is fixedly connected with a bottom auger, the main auger is driven by the second motor, the auxiliary augers are driven by the first motor, a discharge pipe is arranged at the bottom of the premixing cylinder, the discharge pipe is connected to a discharge port through a control valve, the discharge port is a flat-mouth structure, and a guide plate is fixedly arranged on one side of the discharge port.

[0011] Preferably, the discharging mechanism includes a cooling fan and a discharging electromagnet, a second bracket is fixedly mounted on the first bracket, a plurality of crushing cones are fixedly mounted on the second bracket, a limit plate is fixedly mounted on both the first bracket and the second bracket, the limit plate is arranged on the plane where the transmission belt is located, the limit plate is used to limit the downward deformation of the transmission belt, a plurality of cooling fans are fixedly mounted on the first bracket, the cooling fans are used to cool the loading unit, and a plurality of discharging electromagnets are also fixedly mounted on the first bracket.

[0012] Preferably, the loading unit includes a plurality of material receiving boxes, an ear plate is fixedly provided on the edge of the material receiving box, a slide groove is also provided on the periphery of the material receiving box, a slider is slidably provided in the slide groove, through holes are provided on the slider and the ear plate, a guide column is slidably provided in the through hole, the end of the guide column is fixedly connected to the transmission belt, a spring is provided on the periphery of the guide column, a plurality of heating cones are fixedly provided in the material receiving box, a magnetic block is fixedly installed on the bottom of the material receiving box, a measuring component is fixedly installed on the top of the first bracket, the measuring component is a distance sensor, and the distance sensor is fixedly installed on the first bracket.

[0013] Preferably, in the process of treating papermaking sludge, the material is introduced into the premixing cylinder, and the material is evenly mixed by the cooperation of the main auger, the auxiliary auger and the bottom auger. The output power of the first motor and the second motor is detected to determine whether the material is evenly mixed. When the material is evenly mixed, the material is added to the loading unit, and the material in the loading unit is heated through the air by the second heating coil and the first heating coil, so as to control the evaporation of water. In this process, the moisture content is calculated by two sets of measuring components, and the heating power of the second heating coil and the first heating coil is determined according to the measurement results, so as to dynamically adjust the moisture content of the material.

[0014] Preferably, a protective cover is provided on the base, and a ventilation component is provided on the protective cover.

[0015] Preferably, a material storage cavity is provided on the base, and a sealing door is provided on the side wall of the material storage cavity.

[0016] A device for recycling papermaking sludge provided by the present invention can uniformly mix materials through a premixing mechanism, thereby cooperating with a measurement component to measure the water content of the materials, and dynamically adjusting the heating according to the water content of the materials, ensuring the stability of the final water content of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic structural diagram of a first perspective of a device for recycling papermaking sludge provided by an embodiment of the present invention;

[0018] Figure 2 FIG. 2 is a schematic structural diagram of a second perspective of a device for recycling papermaking sludge provided by an embodiment of the present invention;

[0019] Figure 3 FIG. 3 is a schematic structural diagram of a third perspective of a device for recycling papermaking sludge provided by an embodiment of the present invention;

[0020] Figure 4 FIG. 4 is a schematic structural diagram of a fourth perspective of a device for recycling papermaking sludge provided by an embodiment of the present invention;

[0021] Figure 5 FIG. 5 is a schematic internal structure diagram of a premixing cylinder provided by an embodiment of the present invention;

[0022] Figure 6 FIG. 6 Figure 1 is a partial enlarged view of A in FIG. 5;

[0023] Figure 7 FIG. 7 Figure 1 is a partial enlarged view of B in FIG. 5.

[0024] In the drawings: 1, base; 2, premixing cylinder; 3, second heating coil; 4, first heating coil; 5, first bracket; 6, belt pulley; 7, loading unit; 8, discharging electromagnet; 9, second bracket; 10, cooling fan; 11, first motor; 12, second motor; 13, third bracket; 14, main auger; 15, auxiliary auger; 16, bottom auger; 17, control valve; 18, discharge port; 19, receiving box; 20, guide post; 21, spring; 22, heating cone; 23, chute; 24, slider; 25, transmission belt; 26, shredding cone; 27, limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0027] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, it is a schematic structural diagram of a device for recycling papermaking sludge provided by an embodiment of the present invention. The device includes:

[0028] A base 1, on which a pulley 6 is rotatably installed. A transmission belt 25 is wound around the pulley 6, and a plurality of material-carrying units 7 are fixedly installed on the transmission belt 25. A first bracket 5 is fixedly installed on the base 1, and a second heating coil 3 and a first heating coil 4 are fixedly installed on the first bracket 5. The second heating coil 3 and the first heating coil 4 are sleeved around the transmission belt 25, and the material-carrying unit 7 passes through the second heating coil 3 and the first heating coil 4. A discharging mechanism and a measuring component are installed on the first bracket 5. The measuring component is used to calculate the water content of the material in the material-carrying unit 7, and the discharging mechanism is used to discharge the material in the material-carrying unit 7. A premixing mechanism is fixedly arranged on the base 1, and the premixing mechanism is used to uniformly mix the raw materials and convey the materials to the material-carrying unit 7.

[0029] In the embodiment of the present invention, during use, the materials are introduced into the premixing mechanism, and the materials are mixed by the premixing mechanism to make the materials in a uniform state. After mixing, the materials are uniformly put into the receiving box 19 by the premixing mechanism. The receiving box 19 moves along with the transmission belt 25. There are two groups of measuring components. The first group of measuring components is arranged on the side of the second heating coil 3 close to the premixing mechanism, and the second group of measuring components is arranged between the second heating coil 3 and the first heating coil 4. By performing two measurements, the power of the two heating processes is determined to achieve dynamic control of the water content. After heating is completed, the materials in the material-carrying unit 7 are discharged through the discharging mechanism and enter the next cycle to achieve the purpose of cyclic treatment.

[0030] As Figure 1 , Figure 2 and Figure 5As shown, as a preferred embodiment of the present invention, the premixing mechanism includes four groups of auxiliary augers 15, one group of main auger 14 and one group of premixing cylinders 2. The premixing cylinder 2 is fixedly installed on the base 1. A third bracket 13 and a fourth bracket are fixedly installed in the premixing cylinder 2. The third bracket 13 is located above the fourth bracket. The main auger 14 is rotatably installed on the third bracket 13 and the fourth bracket. The auxiliary augers 15 are also rotatably installed on the third bracket 13 and the fourth bracket. And the four groups of auxiliary augers 15 are evenly distributed around the main auger 14. A bottom auger 16 is fixedly connected to the part of the main auger 14 below the fourth bracket. The main auger 14 is driven by a second motor 12, and the auxiliary augers 15 are driven by a first motor 11. A discharge pipe is arranged at the bottom of the premixing cylinder 2. The discharge pipe is connected to a discharge port 18 through a control valve 17. The discharge port 18 is of a flat-mouth structure, and a guide plate is fixedly arranged on one side of the discharge port 18.

[0031] In this embodiment, during use, the material is put into the premixing cylinder 2. At this time, the control valve 17 is in a closed state, and the material cannot leak from the bottom. The material is papermaking sludge. After putting it in, the second motor 12 and the first motor 11 are started. As Figure 5As shown in the figure, looking down from the top of the premixing cylinder 2, clockwise rotation is defined as the positive direction and counterclockwise rotation as the negative direction. The spiral directions of the auxiliary auger 15, the main auger 14, and the bottom auger 16 are the same. When rotating in the positive direction, the auxiliary auger 15, the main auger 14, and the bottom auger 16 will drive the material to move upward. Conversely, when rotating in the negative direction, the auxiliary auger 15, the main auger 14, and the bottom auger 16 will drive the material to move downward. When mixing the material, the four groups of first motors 11 are respectively defined as the first motor, the second motor, the third motor, and the fourth motor. The first motor, the second motor, the third motor, and the fourth motor are arranged clockwise. The second motor 12 is defined as the fifth motor. First, start the fifth motor, and use the fifth motor to drive the main auger 14 to rotate in the positive direction. The first motor, the second motor, the third motor, and the fourth motor rotate synchronously in the negative direction. At this time, the material will settle downward at the edge of the premixing cylinder 2. When reaching the lower part of the premixing cylinder 2, as the main auger 14 moves upward, the material will circulate in the premixing cylinder 2. During this process, use the bottom auger 16 to transport the material at the bottom of the premixing cylinder 2 upward to ensure uniform mixing of the material. Subsequently, control the first motor and the third motor to rotate in the positive direction, and the second motor and the fourth motor to rotate in the negative direction, so as to disrupt the internal material flow path. During the mixing process, the output power of the second motor 12 is monitored in real time. When the output power of the second motor 12 remains stable and unchanged, it is determined that the premixing is completed. At this time, the second motor 12 stops, and the four groups of first motors 11 start, rotating in the positive direction or the negative direction at the same time, and the output power of the first motors 11 is monitored. If the output powers of the four groups of first motors 11 are all stable and the same, it is determined that the premixing is qualified and the material conveying can start. A sensor is provided on the discharge port 18, and the sensor is used to detect the loading unit 7 below. When the loading unit 7 passes through the discharge port 18, at this time, the first motor 11 and the second motor 12 rotate synchronously in the negative direction. At this time, under the pressure of the auxiliary auger 15, the main auger 14, and the bottom auger 16, the material moves toward the discharge port 18 and thus enters the loading unit 7 to fill the loading unit 7. When the sensor detects that the loading unit 7 has left, the control valve 17 closes. Due to the certain viscosity of the sludge, it will remain in the discharge port 18 until the next loading unit 7 enters the detection range of the sensor. During the period when there is no discharging, the auxiliary auger 15, the main auger 14, and the bottom auger 16 are used to continuously stir the material.

[0032] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, as a preferred embodiment of the present invention, the discharging mechanism includes a cooling fan 10 and a discharging electromagnet 8. A second bracket 9 is fixedly installed on the first bracket 5. A plurality of crushing cones 26 are fixedly installed on the second bracket 9. Limiting plates 27 are fixedly installed on both the first bracket 5 and the second bracket 9. The limiting plates 27 are arranged in the plane where the conveyor belt 25 is located, and the limiting plates 27 are used to limit the downward deformation of the conveyor belt 25. A plurality of cooling fans 10 are fixedly installed on the first bracket 5. The cooling fans 10 are used to cool the material-carrying unit 7. A plurality of discharging electromagnets 8 are also fixedly installed on the first bracket 5.

[0033] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment of the present invention, the material-carrying unit 7 includes a plurality of receiving boxes 19. Lugs are fixedly arranged at the edges of the receiving boxes 19. A sliding groove 23 is further arranged outside the receiving boxes 19. A slider 24 is slidably arranged in the sliding groove 23. Through holes are arranged on both the slider 24 and the lugs. A guiding column 20 is slidably arranged in the through holes. The end of the guiding column 20 is fixedly connected to the conveyor belt 25. A spring 21 is sleeved outside the guiding column 20. A plurality of heating cones 22 are fixedly arranged in the receiving boxes 19. A magnetic block is fixedly installed at the bottom of the receiving boxes 19. A measuring component is fixedly installed at the top of the first bracket 5. The measuring component is a distance sensor, and the distance sensor is fixedly installed on the first bracket 5.

[0034] In this embodiment, when receiving materials, the receiving box 19 moves with the transmission belt 25. When the receiving box 19 is close to the premixing cylinder 2, the receiving box 19 will contact the guide plate, and the guide plate will drive the receiving box 19 to move downward, so that under the tension of the spring 21, the receiving box 19 will fit tightly with the bottom of the discharge port 18. When the receiving box 19 passes under the discharge port 18, the material will enter the receiving box from the discharge port 18, and the material will fill the entire receiving box 19 and be scraped flat by the discharge port 18, that is, each receiving box 19 contains The volumes of the materials are the same. Before heating, the first set of test components is used to measure the moisture content of the material connection box 19, so as to determine the heating scheme according to its moisture content. The second heating coil 3 and the first heating coil 4 both include multiple heating rings, and each heating ring is provided with a set of eddy current heating coils. The power of the eddy current heating coils when the material connection box 19 passes through the corresponding eddy current heating coils can be determined according to the heating scheme. The material connection box 19 and the heating cone 22 are both conductive materials, so they can be heated by the eddy current heating coils, and the heat generated by them is used to heat the materials. After the receiving box 19 passes through the second heating coil 3, the second measuring component is used to measure again, so that the first heating coil 4 is used to make a secondary adjustment to ensure the stability of the moisture content of the material. After the heating is completed, the receiving box 19 moves with the transmission belt 25, thereby turning 180 degrees. In this process, the slider 24 and the slide chute 23 are used to offset the influence of the bending of the transmission belt 25 on the receiving box 19. After heating, the material is in a dry state. At this time, the cooling fan 10 is used to cool the receiving box 19. The heating cone 22 is made of carbon steel. It can be heated by eddy currents and has the characteristics of a high thermal expansion coefficient. Therefore, when cooling, the heating cone 22 will gradually separate from the dry material. In order to further improve the release property, a release coating can be applied inside the material receiving box 19 to facilitate the separation of the material. After cooling, the discharge electromagnet 8 is used to repeatedly adsorb and repel the magnetic block, so that the magnetic block drives the material receiving box 19 to move up and down, and the material collides with the crushing cone 26, so that the material is broken and falls into the base 1. In order to avoid damage to the crushing cone 26 to the material receiving box 19, the length of the guide column 20 is limited.

[0035] In this embodiment, during the process of treating papermaking sludge, the material is introduced into the premixing cylinder 2, and the material is evenly mixed by the cooperation of the main auger 14, the auxiliary auger 15 and the bottom auger 16. The output power of the first motor 11 and the second motor 12 is detected to determine whether the material is evenly mixed. When the material is evenly mixed, the material is added to the loading unit 7, and the material in the loading unit 7 is heated in the air by the second heating coil 3 and the first heating coil 4, so as to control the evaporation of water. In this process, the moisture content is measured by two sets of measuring components, and the heating power of the second heating coil 3 and the first heating coil 4 is determined according to the measurement results, so as to dynamically adjust the moisture content of the material.

[0036] The process of measuring the water content is as follows. When the material receiving box 19 moves above the distance sensor, the distance between the material receiving box 19 and the distance sensor is detected by the distance sensor. Since the material receiving box 19 and the spring 21 are in a balanced state, the elongation of the spring 21 can be calculated and determined according to the distance between the material receiving box 19 and the distance sensor, so as to determine the weight of the material in the material receiving box 19. Since the volume of the material in the material receiving box 19 is known, the density of the material in the material receiving box 19 can be calculated. For materials with different water contents, their densities are known. Therefore, the water content of the material in the current material receiving box 19 can be deduced according to the material density.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A papermaking sludge resource utilization device, characterized in that: The device comprises: A base (1), wherein a pulley (6) is rotatably mounted on the base (1), a transmission belt (25) is wound around the pulley (6), a plurality of loading units (7) are fixedly mounted on the transmission belt (25), a first bracket (5) is fixedly mounted on the base (1), a second heating coil (3) and a first heating coil (4) are fixedly mounted on the first bracket (5), the second heating coil (3) and the first heating coil (4) are sleeved on the outer periphery of the transmission belt (25), the loading unit (7) passes through the second heating coil (3) and the first heating coil (4), a discharging mechanism and a measuring component are mounted on the first bracket (5), the measuring component is used to calculate the water content of the material in the loading unit (7), the discharging mechanism is used to discharge the material in the loading unit (7), and a premixing mechanism is fixedly mounted on the base (1), the premixing mechanism is used to evenly mix the raw materials and transport the materials to the loading unit (7); The premixing mechanism comprises four groups of auxiliary augers (15), one group of main augers (14) and one group of premixing cylinders (2), wherein the premixing cylinders (2) are fixedly mounted on a base (1), a third bracket (13) and a fourth bracket are fixedly mounted inside the premixing cylinder (2), the third bracket (13) is located above the fourth bracket, the main augers (14) are rotatably mounted on the third bracket (13) and the fourth bracket, the auxiliary augers (15) are also rotatably mounted on the third bracket (13) and the fourth bracket, and the four groups of auxiliary augers (15) are fixedly mounted on a base (1). 5) uniformly distributed around the periphery of the main auger (14), the portion of the main auger (14) located below the fourth bracket is fixedly connected to a bottom auger (16), the main auger (14) is driven by a second motor (12), the auxiliary auger (15) is driven by a first motor (11), a discharge pipe is provided at the bottom of the premixing cylinder (2), the discharge pipe is connected to a discharge port (18) via a control valve (17), the discharge port (18) is a flat-mouth structure, and a guide plate is fixedly provided on one side of the discharge port (18); The discharging mechanism comprises a cooling fan (10) and a discharging electromagnet (8); a second bracket (9) is fixedly mounted on the first bracket (5); a plurality of crushing cones (26) are fixedly mounted on the second bracket (9); a limiting plate (27) is fixedly mounted on both the first bracket (5) and the second bracket (9); the limiting plate (27) is arranged on a plane where the transmission belt (25) is located; the limiting plate (27) is used to limit the downward deformation of the transmission belt (25); a plurality of cooling fans (10) are fixedly mounted on the first bracket (5); the cooling fans (10) are used to cool the loading unit (7); and a plurality of discharging electromagnets (8) are also fixedly mounted on the first bracket (5); The loading unit (7) comprises a plurality of material receiving boxes (19), the edges of which are fixedly provided with ear plates, the periphery of which is also provided with a slide groove (23), a slider (24) being slidably provided in the slide groove (23), the slider (24) and the ear plate being provided with through holes, a guide column (20) being slidably provided in the through holes, the end of the guide column (20) being fixedly connected to a transmission belt (25), a spring (21) being sleeved on the periphery of the guide column (20), a plurality of heating cones (22) being fixedly provided in the material receiving box (19), a magnetic block being fixedly installed at the bottom of the material receiving box (19), a measuring component being fixedly installed at the top of the first bracket (5), the measuring component being a distance sensor, and the distance sensor being fixedly installed on the first bracket (5).

2. The papermaking sludge resource utilization device according to claim 1, characterized in that: In the process of treating papermaking sludge, the material is introduced into the premixing cylinder (2), and the material is evenly mixed by the cooperation of the main auger (14), the auxiliary auger (15) and the bottom auger (16). By detecting the output power of the first motor (11) and the second motor (12), it is determined whether the material is evenly mixed. When the material is evenly mixed, the material is added to the loading unit (7), and the material in the loading unit (7) is heated in the air by the second heating coil (3) and the first heating coil (4), thereby controlling the evaporation of water. In this process, the water content is measured by two sets of measuring components, and the heating power of the second heating coil (3) and the first heating coil (4) is determined according to the measurement results, thereby dynamically adjusting the water content of the material.

3. The papermaking sludge resource utilization device according to claim 1, characterized in that: A protective cover is provided on the base (1), and a ventilation component is provided on the protective cover.

4. The papermaking sludge resource utilization device according to claim 1, characterized in that: A material storage cavity is provided on the base (1), and a sealing door is provided on a side wall of the material storage cavity.

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