Heating bin material dividing device and material dividing method

Abstract

The present invention relates to the technical field of material bins of electric separators, and in particular to a heating bin material ...

Description

Technical Field

[0001] The invention relates to the technical field of material separation bins of electric separators, and in particular to a heating bin material separation device and a material separation method. Background Art

[0002] A high-voltage electrostatic separator is a device that uses a high-voltage electric field to separate materials. It mainly generates a strong electric field between electrodes, so that material particles with different electrical properties and conductivity are subjected to different electric field forces to separate high-value metals. As a green and low-carbon technology with great environmental advantages and development potential, high-voltage electrostatic separation technology plays an important role in the sorting of metal ores, non-metallic ores, and the recycling and utilization of electronic waste.

[0003] In the process of high-voltage electrostatic separation, the conductivity of minerals and the selectivity of separation are closely related to the temperature and humidity of the minerals. Normally, the moisture content of the selected materials should be strictly controlled below 1%. Because once the moisture content of the mineral is too high, the conductivity of the non-conductor in the mineral will be significantly enhanced, resulting in a significant reduction in the difference in conductivity between it and the conductor in the mineral. This situation will seriously undermine the selectivity of the separation and greatly reduce the separation effect.

[0004] At present, most of the materials processed by high-voltage electric separators come from other mineral processing methods such as gravity separation. These materials often contain a certain proportion of moisture, ranging from about 2% to as high as 7%. If these materials are not dried and sorted directly, the selectivity of the sorting will become extremely poor and the expected sorting effect cannot be achieved. In addition, different materials have different adaptability ranges to the sorting temperature. Therefore, before the materials enter the high-voltage electric separator, they must be heated and dried to keep them within the optimal sorting temperature range.

[0005] The heating silo of the existing high-voltage electric separator usually adopts bucket lifting for feeding, and there are usually only one or two corresponding feeding points. In order to ensure the heating efficiency, the material needs to fully cover the heating tube in the heating silo, and the repose angle of the material must also be considered to prevent the material from overflowing from the top of the heating silo. As a result, the overall height of the heating silo has to be increased, resulting in the generally larger volume of the heating silo of the existing high-voltage electric separator. This not only increases the height of the feed hopper, but also inevitably leads to the need for the material sorting production line to adopt a larger floor-height plant, which greatly increases the construction cost of the material sorting production line.

[0006] In addition, in the prior art, the bottom of the heating silo used for the double-row multi-roller high-voltage electric separator has discharge ports corresponding to the two rows of rollers. Common unloading methods include roller unloading, vibration unloading, and manual unloading. However, because the two discharge ports correspond to different roller components, their rotation speeds are different. In the vibration unloading method, the two vibration unloading components are affected by the vibration motor frequency and the processing error of the unloading slide, which will lead to different discharges. And long-term high temperature environment will cause the discharge port structure to deform. These factors cause the materials at the two discharge ports at the bottom of the heating silo to differ significantly in temperature and flow, seriously affecting the sorting effect of the materials in the left and right rows of rollers of the double-row multi-roller high-voltage electric separator.

[0007] In summary, the high-voltage electric separator in the prior art has many problems in the feeding, heating and discharging of the heating silo. Therefore, there is an urgent need for a heating silo sorting device that can solve the above problems. Summary of the invention

[0008] In order to solve the above-mentioned problems, the present invention provides a heating silo material distributing device.

[0009] In the first aspect, the present invention provides a heating silo material distributing device, which adopts the following technical solution:

[0010] A heating silo material dividing device comprises an upper hopper, a feed screening assembly installed at a downward tilt corresponding to the discharge port of the upper hopper, a storage silo installed corresponding to the screening outlet of the feed screening assembly, a material dividing and heating assembly arranged at the bottom of the storage silo for heating the material, a roller feeding assembly for discharging the material in a thin layer at the lower end of the storage silo for discharging the material in a thin layer, the feed screening assembly screens the material and discharges the material linearly into the storage silo, and after being discharged in a thin layer by the roller feeding assembly, the material enters the material dividing and heating assembly for discharging and heating.

[0011] Furthermore, the feed screening assembly includes a fixed chute inclined along the material discharge direction, a plurality of movable chutes equipped with slag screens movably sleeved in the slideway of the fixed chute, a material blocking mouth arranged at the discharge port of the fixed chute, the material blocking mouth includes a bottom plate arranged parallel to the slideway of the fixed chute, and the impurity particles are removed by controlling the plane distance between the slideway of the fixed chute and the slag screen, and a material blocking plate for blocking the impurity particles is arranged perpendicular to the bottom plate of the material blocking mouth.

[0012] Furthermore, the feed screening assembly includes a base connected to the fixed chute via multiple groups of springs, and a vibration motor arranged at the bottom of the fixed chute to vibrate the fixed chute.

[0013] Furthermore, the feed and discharge ends of the fixed chute are respectively provided with a feed square notch and a discharge square notch, and the fixed chute is contracted from bottom to top, and the discharge end of the fixed chute is arranged parallel to the roller of the roller cloth assembly. The material carried from the discharge port of the upper hopper into the feed notch is diffused by the feed screening assembly and then discharged linearly into the storage bin body, thereby reducing the height of the storage bin body.

[0014] Furthermore, a discharge port connected to the inner cavity of the chute body is formed on the side wall of the fixed chute body, and the discharge port is arranged at the upper end of the material blocking nozzle to discharge impurities sliding down the surface of the slag separation component out of the fixed chute.

[0015] Furthermore, the storage bin body includes two parallel and symmetrically arranged end plates, two side plates arranged in a parallel direction of the feeding and screening assembly and enclosed with the end plates, and two inverted triangle-shaped material discharge slides arranged at the lower ends of the two side plates, an inverted triangle cavity is formed between the two material discharge slides, a linear material discharge slot is provided at the bottom of the inverted triangle cavity, and a preheating assembly is provided in the inverted triangle cavity of the storage bin, and the preheating assembly includes a plurality of groups of heating tubes penetrated in the storage bin body for preheating materials.

[0016] Furthermore, the roller material distribution assembly includes a roller arranged below the material discharge slot in a direction parallel to the heating tube, two bearings respectively arranged at both ends of the roller for supporting the rotation of the roller, a variable frequency reduction motor directly connected to one end of the roller for driving the roller to rotate, used to drive and adjust the roller speed, the roller is rotated to throw the material along the direction of the roller rotation and uniformly discharge the material to the material distribution heating assembly in a thin layer under the action of gravity. Furthermore, the roller includes a ceramic roller body, a drive shaft nested at one end of the ceramic roller body and a non-drive end shaft nested at the other end of the ceramic roller body, and the drive shaft and the non-drive end shaft are both made of metal.

[0017] Furthermore, the material dividing and heating component includes a shell, a divider arranged at the upper end of the shell, the divider includes a plurality of groups of grid grooves arranged at the feeding end on the top of the shell, which are staggered and symmetrically distributed along the length direction, a herringbone-shaped cavity arranged directly below the plurality of groups of grid grooves, a herringbone-shaped blanking plate arranged parallel to the lower end of the herringbone-shaped cavity, and a plurality of groups of heating components symmetrically arranged in the herringbone-shaped cavity and placed on the upper side of the blanking plate along the length direction, so as to heat the material and divide the material at the same time.

[0018] Furthermore, the two side plates of the shell are provided with inspection windows that penetrate the thickness of the plates, and the inspection windows are correspondingly provided with first cover plates that are detachably installed and used to seal and cover the inspection windows.

[0019] Furthermore, an outer shell is provided outside the shell, an observation window is provided on the outer shell at a position corresponding to the inspection window, and a second cover plate which is detachably mounted and used to seal and cover the observation window is provided on the observation window.

[0020] Furthermore, a material level control system is provided in the storage bin, and the material level control system comprises:

[0021] A first material level detection module, used to detect the actual material level height of the storage bin and output a corresponding output signal when the material level is higher than a preset upper limit height;

[0022] The second material level detection module is used to detect that the speed of the motor controlling the roller speed reaches the upper limit and the height of the storage bin is higher than the preset height upper limit and output a corresponding output signal;

[0023] The third material level detection module is used to detect that the speed of the motor controlling the upper hopper reaches the upper limit and the height of the storage bin is higher than the preset upper limit and output a corresponding output signal;

[0024] The roller speed regulating module is used to send a signal to the motor for regulating the roller speed to control the motor to rotate, accelerate, decelerate or stop according to the material level signal output by the first material level detection module;

[0025] The bucket lifting speed adjustment module is used to send a signal to control the motor frequency to the motor controlling the upper bucket lifting according to the material level signal output by the second material level detection module;

[0026] A material level sound and light reminder module, used for issuing sound and light reminders according to the signal output by the third material level detection module;

[0027] The material level power supply module is used to provide working voltage to the motor and detection module.

[0028] Furthermore, a constant temperature control system is provided in the storage bin, and the constant temperature control system comprises:

[0029] The temperature detection module is used to detect the ratio of the temperature of the outlet at the bottom of the cloth assembly to the preset temperature and output a corresponding output signal;

[0030] The equipment operation detection module is used to detect that the voltage of the heating tube reaches the upper limit or the temperature is too high and the heating tube stops heating and outputs a corresponding output signal;

[0031] A heating tube voltage control module is used to increase or decrease the output control voltage of the heating tube or turn it off according to the output signal of the temperature detection module;

[0032] The temperature control sound and electricity reminder module is used to issue sound and light reminders according to the signal output by the equipment operation detection module;

[0033] The temperature control power supply module is used to provide working voltage to the heating tube and the detection module.

[0034] In a second aspect, the present invention provides a heating silo material distribution method, which adopts the following steps:

[0035] S1. The upper hopper lifts the low-level material to the upper hopper outlet and drops it into the movable chute. The vibrating motor drives the fixed chute to vibrate the material and filter the slag screen, and the material enters the preheating assembly linearly along the outlet slot;

[0036] S2. Use multiple sets of heating pipes to preheat the materials entering therein, and the preheated materials enter the storage silo;

[0037] S3. The preheated material is thrown out along the direction of rotation of the roller by rotating the roller, and the thin layer is evenly fed to the material distribution heating assembly under the action of gravity;

[0038] S4. Multiple groups of grid troughs evenly distribute the materials, and the materials enter the divider under the action of gravity. The divider and the heating components therein are used to achieve uniform material distribution and heating and dehumidification of the materials respectively.

[0039] In summary, the present invention has the following beneficial technical effects:

[0040] 1. In the present invention, the material is processed by the slag screen, which effectively removes impurities in the material and purifies the material to be sorted. The processed material falls into the preheating assembly in a linear manner along the channel surface of the material discharge chute component for heating. This linear material discharge method greatly reduces the repose angle required for single-point material discharge, thereby significantly reducing the height of the preheating assembly, and the height of the upper hopper is also reduced, reducing the overall space occupation of the equipment and reducing the manufacturing and installation costs of the equipment. At the same time, impurities in the material are automatically discharged to avoid the wear and damage of the subsequent roller cloth assembly by impurities.

[0041] 2. In the present invention, after being preheated, the material enters the rotating roller. Under the action of the roller, the material is evenly spread and enters the material separation and heating assembly in a linear and uniform state along the roller surface. Through the action of multiple groups of grid grooves, the material is accurately and evenly divided into two strands, and slides smoothly along the slide into the two feed hoppers on the top of the double-row high-voltage electric separator. In the process of the material passing through the divider, multiple groups of heating components work at the same time, so that the material is quickly heated up to reach the ideal separation temperature, ensuring the temperature consistency of the material when entering the double-row high-voltage electric separator.

[0042] 3. In the present invention, the entire heating and material distribution system adopts a multi-stage controllable heating method. By setting a material level control system, the material level height of the storage bin can be accurately controlled to prevent waste and safety hazards caused by material overflow, effectively coordinate the running speed of the upper hopper and the roller, ensure the stability of the material supply of the entire system, reduce production interruptions and equipment idling caused by unstable material levels, and set a constant temperature control system to accurately control the heating temperature of the material to ensure that the material reaches the optimal sorting temperature, improve the sorting effect and product quality, extend the service life of the heating tube, effectively reduce energy consumption, and reduce equipment maintenance costs. At the same time, the sound and light reminder function can promptly remind the operator to pay attention to the material level, make corresponding adjustments, and reduce production problems caused by human negligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the three-dimensional structure of a heating silo dispensing system in industrial application according to this embodiment.

[0044] Figure 2 It is a front view schematic diagram of the structure in which no feed screening assembly is provided in the prior art.

[0045] Figure 3 It is a schematic diagram of the three-dimensional structure of the feed screening assembly in this embodiment.

[0046] Figure 4 This is a schematic diagram of the top view of the feed screening assembly in this embodiment.

[0047] Figure 5 It is another three-dimensional structural schematic diagram of the feed screening assembly in this embodiment.

[0048] Figure 6 Schematic diagram of the three-dimensional structure of the preheating component in this embodiment.

[0049] Figure 7 This is a schematic diagram of the front structure of the storage bin in this embodiment.

[0050] Figure 8 Schematic diagram of the roller structure in this embodiment.

[0051] Fig. 9 It is a schematic diagram of the three-dimensional structure of the material distribution and heating component in this embodiment.

[0052] Fig.10 Schematic diagram of the internal structure of the material distribution and heating component in this embodiment.

[0053] Fig.11 It is a schematic diagram of the top view of the material distribution and heating component in this embodiment.

[0054] Fig.12 This is a schematic diagram of the bottom view of the internal structure of the two-way divider of the material dividing and heating assembly in this embodiment.

[0055] Fig.13 This is the circuit control schematic diagram of the temperature control system.

[0056] Fig.14 This is the control logic diagram of the material level control system.

[0057] Fig.15 This is the control logic diagram of the constant temperature control system.

[0058] Fig.16 The present invention is a flow chart of a heating silo material distribution method.

[0059] Among them, 1. Feed screening assembly; 101. Fixed chute; 102. Movable chute; 103. Material blocking nozzle; 1031. Bottom plate; 1032. Material blocking plate; 104. Spring; 105. Discharge port; 106. Slag screen; 107. Feed square notch; 108. Discharge square notch; 109. Base; 110. Dust cover; 111. Negative pressure dust removal device;

[0060] 2. Storage bin; 201. End plate; 202. Side plate; 203. Unloading slide; 204. Heating tube; 205. Air valve switch; 206. Second baffle plate; 207. Unloading slot;

[0061] 3. Roller cloth assembly; 301. Roller; 302. Speed ​​reduction motor; 303. Drive shaft; 304. Non-drive shaft;

[0062] 4. Material dividing and heating assembly; 401. Shell; 402. Grid groove; 403. Divider; 404. Unloading plate; 405. Heating component; 406. Heating plate; 407. Inspection window; 408. Observation window; 409. Shell;

[0063] 5. Lifting the upper hopper; 6. Lifting the upper hopper according to the prior art. DETAILED DESCRIPTION

[0064] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0065] Example 1

[0066] Reference Figure 1 The present embodiment provides a heating silo dividing device, comprising an upper hopper lift 5, a feed screening assembly 1 installed downwardly inclined corresponding to the discharge port of the upper hopper lift 5, a storage silo body 2 installed corresponding to the screening outlet of the feed screening assembly 1, a dividing and heating assembly 4 arranged at the bottom side of the storage silo body 2 for heating the material, a roller 301 distribution assembly 3 for discharging a thin layer of material is provided at the lower end of the storage silo body 2, the feed screening assembly 1 screens the material and discharges it linearly into the storage silo body 2, and after a thin layer of material is discharged by the roller 301 distribution assembly 3, the material enters the dividing and heating assembly 4 for dividing and heating.

[0067] Reference Figure 2 The height of the hopper in the prior art is higher than that of the present embodiment. Considering the repose angle of the material to prevent the material from overflowing from the top of the heating silo, the overall height of the heating silo has to be increased accordingly, resulting in the general large volume of the heating silo of the existing high-voltage electric separator. This not only increases the height of the feed hopper, but also inevitably leads to the need for a larger floor-height plant for the material sorting production line, greatly increasing the construction cost of the material sorting production line.

[0068] During operation, the upper hopper 5 lifts the low-level material to its discharge port, and the material then enters the feed screening assembly 1. In the feed screening assembly 1, the material is first filtered by the slag screen 106 to remove the impurity particles therein. The vibration motor drives the fixed chute 101 to vibrate, so that the material continuously slides and disperses on the slag screen 106, further enhancing the screening effect. The screened material is linearly discharged along the slideway of the fixed chute 101 to the storage bin 2.

[0069] Reference Figure 3 and Figure 4 The feed screening assembly 1 includes a fixed chute 101 inclined along the material discharge direction, a plurality of movable chutes 102 movably sleeved in the slideway of the fixed chute 101 and equipped with a slag screen 106, a material blocking mouth 103 arranged at the discharge port of the fixed chute 101, the material blocking mouth 103 includes a bottom plate 1031 arranged parallel to the slideway of the fixed chute 101, and the impurity particles are removed by controlling the plane distance between the slideway of the fixed chute 101 and the slag screen 106, and a material blocking plate 1032 is arranged perpendicular to the bottom plate 1031 of the material blocking mouth 103 to block the impurity particles.

[0070] The feed screening assembly 1 includes a base 109 connected to the fixed chute 101 via multiple groups of springs 104 , and a vibration motor disposed at the bottom of the fixed chute 101 to vibrate the fixed chute 101 .

[0071] Reference Figure 4 The feed and discharge ends of the fixed chute 101 are respectively provided with a feed square notch 107 and a discharge square notch 108. The fixed chute 101 is contracted from bottom to top, and the discharge end of the fixed chute 101 is arranged parallel to the roller 301 of the roller 301 cloth assembly 3. The material entering the feed notch from the discharge port of the upper hopper is linearly discharged into the roller 301 after passing through the feed screening assembly 1, thereby reducing the height of the storage bin body 2. Through such a design, the height of the storage bin body 2 is greatly reduced, and the height of the upper hopper is also greatly reduced.

[0072] The side wall of the fixed chute 101 body is provided with a discharge port 105 connected to the inner cavity of the chute body. The discharge port 105 is arranged at the upper end of the blocking nozzle 103 and is used to discharge impurities sliding down the surface of the slag separation component out of the fixed chute 101 .

[0073] During operation, after the material passes through the slag separation component, the impurities are located above the slag separation component and do not fall into the discharge chute. After screening, the material without impurities continuously slides down and diffuses under the action of the vibration motor, further increasing the discharge width of the discharge port and increasing the range of the material covering the storage bin.

[0074] Reference Figure 5 The fixed chute 101 also includes a dust cover 110 disposed above the slide, and a negative pressure dust removal device 111 that passes through the dust cover 110 and connects to the material sliding channel.

[0075] Reference Figure 6 The storage bin body 2 includes two parallel and symmetrically arranged end plates 201, two side plates 202 arranged in parallel with the feeding and screening component 1 and enclosed with the end plates 201, and two inverted triangle-shaped material discharge slides 203 arranged at the lower ends of the two side plates 202. An inverted triangle cavity is formed between the two material discharge slides 203, and a linear material discharge through groove is opened at the bottom of the inverted triangle cavity. A preheating component is arranged in the inverted triangle cavity of the storage bin, and the preheating component includes a plurality of heating tubes 204 penetrating the storage bin body 2 for preheating materials.

[0076] The storage bin 2 plays the role of temporarily storing materials and preheating them. The multiple groups of heating pipes 204 in the preheating assembly are evenly distributed, which can preheat the materials more evenly and prepare for subsequent heating and sorting.

[0077] Reference Figure 7 A positioning hole penetrating the thickness of the plate is provided on the top of the end plate 201, and a positioning sleeve of a heating tube 204 is welded to the outer side of the positioning hole away from the storage bin body 2. A long strip of material discharge chute hole is provided on the bottom of the side plate 202 near the storage bin body 2, and holders are symmetrically provided on both sides of the bottom of the side plate 202. A second material baffle plate 206 with a rotating shaft is hung between the holders, and one end of the second material baffle plate 206 is connected to the air valve switch 205, and the air valve switch 205 is rotated to adjust the material discharge amount.

[0078] The preheating assembly also includes a plurality of groups of detachable shutter plates covering the bottom of the storage bin body 2 to prevent dust from being generated during the process of the material being rotated by the roller 301. The shutter plates not only have the functions of water evaporation and heat dissipation, but also increase the overall appearance of the equipment.

[0079] Reference Figure 7 and Figure 8The roller 301 material distribution component 3 includes a roller 301 arranged below the material discharge slot and in a direction parallel to the heating tube 204, two bearings respectively arranged at both ends of the roller 301 for supporting the rotation of the roller 301, and a variable frequency reduction motor 302 directly connected to one end of the roller 301 for driving the roller 301 to rotate, which is used to drive the roller 301 and adjust the speed of the roller 301. The roller 301 rotates to throw the material along the rotation direction of the roller 301 and discharge the material in a thin layer evenly to the material distribution heating component 4 under the action of gravity.

[0080] During operation, the preheated material enters the roller 301 material distribution component 3, and the variable frequency reduction motor 302 drives the roller 301 to rotate. The roller 301 discharges the material in a thin layer. When the material falls into the roller, the roller 301 rotates to throw the material in the direction of rotation of the roller 301, and the thin layer is uniformly discharged to the material distribution and heating component 4 under the action of gravity. By adjusting the speed of the motor, the rotation speed of the roller 301 can be accurately controlled, thereby adjusting the thickness of the thin layer of the material, that is, the feeding speed and feeding amount are controlled by the speed, and the distribution uniformity of the feeding is achieved.

[0081] The roller 301 includes a ceramic roller body, a drive shaft 303 nested at one end of the ceramic roller body, and a non-drive shaft 304 nested at the other end of the ceramic roller body, and both the drive shaft 303 and the non-drive shaft 304 are made of metal. The ceramic roller body is made of ceramic sintering, has high hardness and smooth surface, and can avoid thermal deformation of the roller 301 after the material is heated, so as to accurately control the thickness of the material layer of the cloth, that is, accurately control the material feeding amount and feeding speed, and through the setting of the roller, ensure the uniformity of the material entering the material distribution heating assembly 4 along the length direction of the ceramic roller.

[0082] Reference Fig. 9 and Fig.10 The material dividing and heating component 4 includes a sealed shell 401, a divider 403 arranged at the upper end of the shell, the divider 403 includes a plurality of grid grooves 402 arranged at the feeding end at the top of the shell 401, which are staggered and symmetrically distributed along the length direction, a herringbone-shaped cavity arranged directly below the plurality of grid grooves 402, a herringbone-shaped blanking plate 404 parallel to the lower end of the herringbone-shaped cavity, and a plurality of heating components 405 symmetrically arranged in the herringbone-shaped cavity along the length direction and placed on the upper side of the blanking plate 404, so as to heat the material and divide the material at the same time.

[0083] The material distribution and heating component 4 realizes further heating and precise material distribution. The multiple groups of grid slots 402 evenly distribute the material, the divider 403 ensures that the material is evenly heated during the heating process, the heating component 405 uses the heating tube 204, and the back of the blanking plate 404 is provided with multiple groups of positioning slots, and the heating plate 406 can be removably inserted between the positioning slots. The multiple groups of heating tubes 204 can quickly increase the air temperature in the herringbone cavity, so that the material that passes through the roller 301 cloth component 3 and enters the blanking plate 404 in a thin layer does not contact the heating component 405 and can quickly heat up, refer to Fig.12 At the same time, the heating plate 406 arranged on the bottom surface of the blanking plate 404 away from the heating component 405 can also play a dual role of auxiliary heating for the material passing through the blanking plate 404, greatly improving the efficiency of heating and raising the temperature of the material.

[0084] Reference Fig.10 and Fig.11 The two side plates 202 of the sealed shell 401 are provided with inspection windows 407 that penetrate the plate thickness, and the inspection windows 407 are correspondingly equipped with a first cover plate that can be detachably installed and used to seal and cover the inspection windows 407.

[0085] The shell 401 is provided with an outer shell 401 outside, and an observation window 408 is provided on the outer shell 401 at a position corresponding to the inspection window 407 . The observation window 408 is provided with a second cover plate which is detachably installed and used for sealingly covering the observation window 408 .

[0086] The storage bin 2 is provided with a material level control system, which includes:

[0087] A first material level detection module, used to detect the actual material level height of the storage bin and output a corresponding output signal when the material level is higher than a preset upper limit height;

[0088] The second material level detection module is used to detect that the speed of the motor controlling the speed of the roller 301 reaches the upper limit and the height of the storage bin is higher than the preset upper limit and output a corresponding output signal;

[0089] The third material level detection module is used to detect that the speed of the motor controlling the upper hopper 5 reaches the upper limit and the height of the storage bin is higher than the preset upper limit and output a corresponding output signal;

[0090] The roller 301 speed regulating module is used to send a signal to the motor for regulating the roller 301 speed to control the motor to rotate, accelerate, decelerate or stop according to the material level signal output by the first material level detection module;

[0091] The bucket lifting speed adjustment module is used to send a signal to control the motor frequency to the motor controlling the upper bucket lifting 5 according to the material level signal output by the second material level detection module;

[0092] A material level sound and light reminder module, used for issuing sound and light reminders according to the signal output by the third material level detection module;

[0093] The material level power supply module is used to provide working voltage to the motor and detection module.

[0094] The storage bin 2 is provided with a constant temperature control system, and the constant temperature control system comprises:

[0095] The temperature detection module is used to detect the ratio of the temperature of the outlet at the bottom of the cloth assembly to the preset temperature and output a corresponding output signal;

[0096] The equipment operation detection module is used to detect that the voltage of the heating tube 204 reaches the upper limit or the temperature is too high and the heating tube 204 stops heating and outputs a corresponding output signal;

[0097] The voltage control module of the heating tube 204 is used to increase or decrease the output control voltage of the heating tube 204 or turn it off according to the output signal of the temperature detection module;

[0098] The temperature control sound and electricity reminder module is used to issue sound and light reminders according to the signal output by the equipment operation detection module;

[0099] The temperature control power supply module is used to provide working voltage to the heating tube 204 and the detection module.

[0100] Reference Fig.13 The temperature control system includes a temperature measuring element, a junction box, and a PID controller arranged in the junction box. The temperature measuring element has multiple groups of discharge ports respectively arranged at the two ends of the bottom of the divider 403 body. The PID controller connects the temperature measuring element and the frequency converter of the reduction motor 302. The frequency converter controls the reduction motor 302 to realize the speed control of the roller 301. Different roller 301 speeds pass through different amounts of material in the heating tube 204. At the same time, the PID controller controls the voltage regulation of the heating tube 204 to realize automatic control of the heating current of the heating tube 204. That is, under different feeding amounts, the temperature meter output by the PID algorithm gives the heating tube 204 a corresponding heating current, so as to achieve uniform control of the material temperature, high efficiency and energy saving in heating, and avoid frequent damage to the heating tube 204.

[0101] Reference Fig.14, the material level control system is used to continuously monitor whether the material level is within the preset range after switching to the material level closed-loop control logic. When the actual material level height of the storage silo 2 is higher than the upper limit of the material level height of the storage silo 2 or lower than the lower limit of the material level height of the storage silo 2, the unloading speed of the storage silo 2 is controlled by adjusting the rotation frequency of the unloading roller 301. When the material level of the storage silo 2 is too high, the rotation frequency is increased to increase the unloading speed; when the material level of the storage silo 2 is too low, the rotation frequency will be reduced to slow down the unloading speed. The system will continue to compare the actual material level with the preset value until the material level is within the preset value.

[0102] When the frequency of the unloading roller 301 has reached the upper or lower limit, but the material level of the storage bin 2 is still outside the preset value range, the second operation device will be activated to control the material incoming speed by controlling the frequency of the bucket lift motor. When the material level of the storage bin 2 is too high, the frequency of the bucket lift motor will be reduced to slow down the material incoming speed; when the material level of the storage bin 2 is too low, the frequency of the bucket lift motor will be increased to speed up the material incoming speed. The system will continue to compare the actual material level with the preset value until the material level is within the preset value.

[0103] When the frequency of the unloading roller 301 and the frequency of the bucket elevator motor have reached the upper or lower limit, and the material level is still outside the preset value, the system will issue an audible and visual reminder of the high or low material level, allowing on-site construction personnel to discover it more quickly.

[0104] Before the formal heating, the device is pre-set with a preheating device, and a heating pipe 204 is arranged in the preheating component. When the material enters the storage bin 2, the material will be given an initial temperature first, so that when the formal heating is carried out, the influence of different incoming material temperatures on the material heating is reduced.

[0105] Reference Fig.15 , the constant temperature control system will control the temperature of the incoming material by controlling the voltage of the heating tubes 204 at both ends of the cloth assembly. When the incoming material enters both ends of the cloth assembly, the actual temperature of the outlet will be compared with the preset temperature range value of the outlet, and the required voltage value of the heating tube 204 will be calculated. During the adjustment process, the actual temperature will be continuously compared with the preset range value. When the actual temperature value is lower than the lower limit of the preset value, the system will run the heating tubes 204 at both ends of the cloth assembly at full power. When the actual temperature is higher than the upper limit of the preset value, the system will stop the heating tubes 204 at both ends of the cloth assembly. In this way, the temperature can be raised or lowered to the preset temperature range more quickly. When the actual temperature is within the set range, the system will always keep the outlet temperature within the set range through an internal algorithm. Finally, when the voltage of the heating tube 204 is running at full power or stops running due to excessive temperature, the system will give an audible and visual reminder of high or low temperature.

[0106] After the system is put into use, it can quickly heat the incoming material to the set temperature range. At the same time, when the temperature reaches this range, the system will stabilize the incoming material temperature in this range with minimal energy consumption, reducing energy waste in production. At the same time, since the system will not continue to operate at maximum power after stable operation, the life of the heating tube 204 and other components is greatly extended. And after entering the preset value, the entire system does not need to be manually adjusted after operation, which also greatly reduces the labor cost.

[0107] Embodiment 2: This embodiment provides a heating silo material distribution method, which adopts the following steps:

[0108] Reference Fig.16 , S1. The upper hopper 5 lifts the low-level material to the discharge port of the upper hopper 5, and falls into the movable chute 102. The fixed chute 101 is driven by a vibration motor to vibrate the material and filter the slag screen 106, and the material enters the preheating assembly linearly along the discharge slot 108;

[0109] During operation: the upper hopper 5 relies on its mechanical structure and power system to smoothly lift the low-level materials to the discharge port at a specified height. The materials fall accurately into the movable chute 102 in a point-like form, and are then vibrated by the fixed chute 101. This vibration helps the materials to disperse and slide on the slag screen 106, so that impurities can be separated, and the pure materials enter the preheating assembly in a linear and orderly manner along the discharge slot 108, mainly realizing the preliminary lifting and preliminary screening of the materials, and preparing for subsequent processing.

[0110] S2. Preheat the material entering therein by using multiple sets of heating tubes 204, and the preheated material enters the storage bin;

[0111] During operation: the multiple groups of heating tubes 204 in the preheating assembly work simultaneously to generate uniform heat, preheat the incoming materials, and then smoothly enter the roller 301 cloth assembly 3. The preheating link makes it easier for the materials to reach an ideal state in subsequent processing, thereby improving the efficiency and effect of the entire material distribution process.

[0112] S3. The preheated material is thrown out along the direction of rotation of the roller by rotating the roller, and the thin layer is evenly fed to the material distribution and heating assembly under the action of gravity;

[0113] During operation, the roller 301 rotates under the drive of the driving device, exerts pressure on the preheated material, and rolls it into a uniform thin layer. Due to the effect of gravity, the formed thin layer of material falls naturally and accurately enters the material distribution and heating component 4, realizing the uniform thin layer processing of the material, creating favorable conditions for accurate material distribution and heating.

[0114] S4. The multi-group grid trough 402 evenly distributes the material, and the material enters the divider 403 under the action of gravity. The divider 403 and the heating component 405 therein are used to achieve uniform material distribution and heating and dehumidification of the material respectively.

[0115] During operation, after the material enters the material distribution and heating component 4, it first encounters multiple groups of grids 402. The special design of the grids 402 allows the material to be evenly distributed, and then enters the divider 403 under the guidance of gravity. The heating component 405 in the divider 403 continues to work, further heating and dehumidifying the material, and at the same time completing the precise material distribution operation, achieving the final heating, dehumidification and precise material distribution of the material, ensuring the quality and efficiency of the material distribution.

[0116] During operation, the material is processed by the slag screen 106, which effectively removes impurities in the material and purifies the material to be sorted. The processed material falls into the storage bin in a linear manner along the channel surface of the material discharge chute component for heating. This linear material discharge method greatly reduces the repose angle required for single-point material discharge, thereby significantly reducing the height of the storage bin, and the height of the upper hopper is also reduced. After preheating, the material enters the rotating roller 301. Under the action of the roller 301, the material is evenly spread and enters the material separation heating component 401 in a linear and uniform state along its cylinder surface. Through the action of multiple groups of grid slots 402, the material is accurately and evenly divided into left and right strands, and slides smoothly along the slide into the two feed hoppers on the top of the double-row high-voltage electric separator. In the process of the material passing through the two-splitter, multiple groups of heating components work at the same time, so that the material is quickly heated up to reach the ideal sorting temperature, ensuring the temperature consistency of the material when entering the double-row high-voltage electric separator.

[0117] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating silo material distribution device, comprising an upper hopper (5), characterized in that: A feed screening assembly (1) is installed downwardly and tiltedly corresponding to the discharge port of the upper hopper (5); a storage bin (2) is installed corresponding to the screening outlet of the feed screening assembly (1); a material distribution heating assembly (4) is arranged on the bottom side of the storage bin (2) to heat the material; and a roller distribution assembly (3) is arranged at the lower end of the storage bin (2) to discharge the material in a thin layer; the feed screening assembly (1) comprises a fixed slide groove (101) arranged tilted along the discharge direction, a slideway movably sleeved on the fixed slide groove (101) A plurality of groups of movable chutes (102) equipped with slag screens (106) are provided inside the chute, a material blocking mouth (103) is arranged at the discharge port of the fixed chute (101), the material blocking mouth (103) comprises a bottom plate (1031) arranged parallel to the slideway of the fixed chute (101), foreign particles are removed by controlling the plane distance between the slideway of the fixed chute (101) and the slag screen (106), and a material blocking plate (1032) arranged perpendicularly to the bottom plate (1031) of the material blocking mouth (103) is arranged to block foreign particles; The feed screening assembly (1) comprises a base (109) connected to the fixed chute (101) via a plurality of groups of springs (104), and a vibration motor arranged at the bottom of the fixed chute (101) to vibrate the fixed chute (101); The fixed chute (101) is provided with a feed slot (107) and a discharge slot (108) at the feed and discharge ends, respectively. The fixed chute (101) is contracted from bottom to top. The discharge end of the fixed chute (101) is arranged parallel to the roller (301) of the roller distribution assembly (3). The material entering the feed slot from the discharge port of the upper hopper (5) is diffused by the feed screening assembly (1) and then discharged linearly into the storage bin (2), thereby reducing the height of the storage bin (2); The storage bin body (2) comprises two end plates (201) arranged in parallel and symmetrically, two side plates (202) arranged in parallel with the feeding and screening assembly (1) in the feeding direction and enclosing the end plates (201), two inverted triangle-shaped material discharge slides (203) arranged at the lower ends of the two side plates (202), an inverted triangle cavity is formed between the two material discharge slides (203), a linear material discharge through groove is provided at the bottom of the inverted triangle cavity, and a preheating component is provided in the inverted triangle cavity of the storage bin, and the preheating component comprises a plurality of groups of heating pipes (204) penetrating the storage bin body (2) for preheating the material; The roller material distribution assembly (3) comprises a roller (301) arranged below the material discharging slot and in a direction parallel to the heating tube (204), two bearings respectively arranged at both ends of the roller (301) for supporting the rotation of the roller (301), and a variable frequency reduction motor (302) directly connected to one end of the roller (301) for driving the roller (301) to rotate, and used to drive and adjust the rotation speed of the roller (301). The roller (301) is rotated to eject the material along the rotation direction of the roller (301) and evenly discharge the material in a thin layer to the material distribution heating assembly (4) under the action of gravity; The material dividing and heating assembly (4) comprises a shell (401), a divider (403) arranged at the upper end of the shell, the divider (403) comprising a plurality of groups of grid grooves (402) arranged at the feeding end of the top of the shell (401) and staggered and symmetrically distributed along the length direction, a herringbone-shaped cavity arranged directly below the plurality of groups of grid grooves (402), a herringbone-shaped blanking plate (404) arranged parallel to the lower end of the herringbone-shaped cavity, and a plurality of groups of heating components (405) arranged symmetrically along the length direction and arranged in the herringbone-shaped cavity and placed on the upper side of the blanking plate (404), so as to heat the material and divide the material at the same time; The feed screening component (1) screens the material and discharges the material linearly into the storage bin (2), and after a thin layer of material is discharged through the roller distribution component (3), the material enters the distribution and heating component (4) for distribution and heating.

2. A heating silo material distributing device according to claim 1, characterized in that: The material storage bin (2) is provided with a material level control system, and the material level control system comprises: A first material level detection module, used to detect the actual material level height of the material storage bin (2) and output a corresponding output signal when the actual material level height is higher than a preset upper limit height; A second material level detection module is used to detect that the rotation speed of the motor for controlling the speed of the roller (301) reaches an upper limit and the height of the material storage bin (2) is higher than a preset upper limit and output a corresponding output signal; A third material level detection module is used to detect that the speed of the motor controlling the upper hopper (5) reaches an upper limit and the height of the material storage bin (2) is higher than a preset upper limit and output a corresponding output signal; A roller (301) speed regulating module, used for sending a signal to a motor for regulating the speed of the roller (301) to control the motor to rotate, accelerate, decelerate or stop according to the material level signal output by the first material level detection module; A module for adjusting the bucket lifting speed is used to send a signal for controlling the motor frequency to a motor for controlling the upper bucket lifting (5) according to the material level signal output by the second material level detection module; A material level sound and light reminder module, used for issuing sound and light reminders according to the signal output by the third material level detection module; The material level power supply module is used to provide working voltage to the motor and detection module.

3. A heating silo material distributing device according to claim 1, characterized in that: The storage bin body (2) is provided with a constant temperature control system, and the constant temperature control system comprises: The temperature detection module is used to detect the ratio of the temperature of the outlet at the bottom of the cloth assembly to the preset temperature and output a corresponding output signal; The equipment operation detection module is used to detect that the voltage of the heating tube (204) reaches an upper limit or the temperature is too high and the heating tube (204) stops heating and outputs a corresponding output signal; A heating tube (204) voltage control module, used to output a control voltage increase or decrease or a shut-down signal to the heating tube (204) according to an output signal of the temperature detection module; The temperature control sound and electricity reminder module is used to issue sound and light reminders according to the signal output by the equipment operation detection module; The temperature control power supply module is used to provide working voltage to the heating tube (204) and the detection module.

4. A heating silo material distribution method, using a heating silo material distribution device according to claim 1, characterized in that: The steps include: S1. The upper hopper (5) lifts the low-level material to the discharge port of the upper hopper (5), and the material falls into the movable chute (102). The fixed chute (101) is driven by a vibration motor to vibrate the material and filter the slag screen (106), and the material enters the storage bin (2) linearly along the discharge slot (108); S2. Preheating the material entering therein by using a plurality of heating tubes (204), and the preheated material enters the roller distribution assembly (3); S3. The preheated material is thrown out along the direction of rotation of the roller by rotating the roller (301), and is uniformly fed into the material distribution and heating assembly (4) in a thin layer under the action of gravity; S4. The multiple grid slots (402) evenly distribute the materials and the materials enter the divider (403) under the action of gravity. The divider (403) and the heating component (405) therein are used to achieve even distribution of the materials and heating and dehumidification of the materials respectively.

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