Discharge port vertical adjustment device with lighting function and quantitative control method

Abstract

The present application relates to a kind of discharge port vertical adjusting device with lighting function and quantitative control method, it belongs to grain processing equipment field, the device includes material bottom bin, material high pressure impact chamber, high pressure impact chamber end cover, negative pressure induced material outlet, discharge port vertical adjusting valve plate, valve adjusting angle marking structure and negative pressure induced wind special-shaped material outlet.Discharge port vertical adjusting valve plate is carried on the outside of high pressure impact chamber end cover by rotating shaft, rotates in the plane perpendicular to end cover around rotating shaft to adjust opening size;Valve adjusting angle marking structure realizes the visualization and accurate positioning of opening;Negative pressure induced wind special-shaped material outlet forms 30°-60° angle with discharge direction to reduce air duct resistance.The present application solves the technical problems that opening of traditional equipment cannot be quantified, adjusting process airflow is disorderly and discharge rate fluctuation is large, improves product batch consistency and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of grain processing equipment, and in particular to a vertical adjustment device for a discharge port with lighting function and a quantitative control method. Background Technology

[0002] In the grain processing industry, grinding mills are one of the core production equipment. Existing grinding mill discharge outlet adjustment devices generally suffer from the following technical defects:

[0003] First, the discharge port opening adjustment lacks precise quantitative methods. Traditional grinding mills typically use slide gate valves or gate valves for coarse adjustment of the discharge port. Operators rely solely on experience to judge the opening size, making it impossible to accurately determine the discharge rate corresponding to the current opening. This results in large fluctuations in the discharge rate of different batches of products and poor product quality consistency.

[0004] Second, the adjustment mechanism interferes severely with the airflow field inside the grinding chamber. Most existing valve plates are set to rotate or translate in a horizontal plane. Their adjustment action easily blocks the tangential high-speed airflow generated by the grinding discs and blades inside the grinding chamber, causing airflow turbulence and uneven negative pressure distribution, which in turn affects the material discharge efficiency and the fineness of the grinding.

[0005] Therefore, there is an urgent need for a vertical adjustment device for the discharge port with lighting function to solve the above-mentioned defects. Summary of the Invention

[0006] To address the problems of low adjustment accuracy and severe airflow interference at the discharge port of existing grain processing mills, this invention provides a vertical adjustment device for the discharge port with lighting function and a quantitative control method.

[0007] In a first aspect of the invention, a vertical adjustment device for a discharge port with an illumination function is provided. The device includes:

[0008] Material storage silo;

[0009] The high-pressure impact chamber for materials is located inside the bottom silo.

[0010] The high-pressure impact chamber end cap is hinged to the material bottom silo via a switch hinge, and is used to open or close the high-pressure impact chamber for materials.

[0011] The negative pressure feed inlet is located on the end cover of the high-pressure impact chamber and is used for material discharge.

[0012] The vertical adjustment valve plate of the discharge port is mounted on the outer end face of the high pressure impact chamber end cover via a rotating shaft and is located at the negative pressure feed port. The vertical adjustment valve plate of the discharge port rotates around the rotating shaft to adjust the opening size of the negative pressure feed port.

[0013] The valve adjustment angle marking structure is horizontally fixed on the end cover of the high-pressure impact chamber and is used to display the opening size of the negative pressure feed inlet in real time.

[0014] The negative pressure exhaust shaped material outlet is mounted on the end cover of the high pressure impact chamber and is connected to the negative pressure exhaust material inlet. The outlet end of the negative pressure exhaust shaped material outlet forms an angle of 30°-60° with the discharge direction of the negative pressure exhaust material inlet.

[0015] The lighting structure, installed at the bottom of the material silo, is used to illuminate the valve adjustment angle marking structure.

[0016] The lighting structure (9) includes a placement block (91), a base plate (92), an auxiliary plate (93), an inclined arc plate (94), a pressure sensor (95), a controller (96), and a lighting lamp (97), wherein;

[0017] The placement block (91) is fixedly installed on the top of the material silo (1). The front end of the placement block (91) is provided with an oblique arc groove (911). A T-shaped groove (912) is provided on each opposite groove wall of the oblique arc groove (911). A T-shaped block (913) is slidably installed in each T-shaped groove (912). An auxiliary groove (914) is provided on the other set of opposite groove walls of the oblique arc groove (911).

[0018] Two auxiliary plates (93) are provided, and the two auxiliary plates (93) are respectively fixedly connected to two T-blocks (913);

[0019] The base plate (92) is fixedly installed at the rear end of the two auxiliary plates (93) and slides in the auxiliary groove (914);

[0020] The inclined arc plate (94) is rotatably mounted between the two auxiliary plates (93);

[0021] The pressure sensor (95) is fixedly installed on the front wall of one of the auxiliary slots (914);

[0022] The lighting lamp (97) is installed at the bottom end of the inclined arc plate (94);

[0023] The controller (96) is electrically connected to the lighting lamp (97) and the pressure sensor (95), respectively.

[0024] By adopting the above technical solution, the axis of rotation of the rotating shaft is parallel to the axis of rotation of the blade grinding disc, so that the valve plate rotates in a plane perpendicular to the end cover. This rotating plane is parallel to the tangential airflow direction, so that the valve plate does not block the tangential airflow channel during adjustment, thus avoiding airflow turbulence. At the same time, the deflection design of the negative pressure induced draft irregular material outlet can reduce the air duct resistance and reduce the accumulation of material at the outlet.

[0025] Optionally, the valve adjustment angle marking structure includes an arc-shaped angle plate, a guide rod, and a limiting component. The arc-shaped angle plate is horizontally fixedly installed on the end cover of the high-pressure impact chamber. An angle scale is engraved on the arc-shaped angle plate. The guide rod is fixedly connected to the rotating shaft, thereby forming a rigid linkage structure with the vertical adjustment valve plate of the discharge port. The vertical adjustment valve plate of the discharge port rotates synchronously with the guide rod. The limiting component is installed at the end of the guide rod facing the arc-shaped angle plate and is used to position the angle of the guide rod.

[0026] By adopting the above technical solution, the guide rod and the valve plate are rigidly linked. The operator can observe the position of the guide rod on the arc-shaped angle plate to obtain the valve plate opening degree in real time and intuitively, so as to achieve precise quantitative adjustment of the opening degree.

[0027] Optionally, the arc-shaped angle plate has a plurality of limiting grooves at one end facing the pointing rod, and the plurality of limiting grooves are equidistantly distributed along the circumference of the arc-shaped angle plate. The pointing rod has a receiving groove at one end facing the arc-shaped angle plate, and the limiting component is located in the receiving groove.

[0028] The limiting component includes a limiting spring and a limiting ball. One end of the limiting spring is fixedly connected to the bottom of the receiving groove, and the other end is fixedly connected to the limiting ball. The end of the limiting ball facing away from the limiting spring is inserted into the limiting groove.

[0029] By adopting the above technical solution, the limiting ball is embedded in the limiting groove under the action of the limiting spring, and a positioning torque is applied to the pointing rod to prevent the valve plate from shifting due to vibration or airflow impact without human intervention, thus ensuring stable opening.

[0030] Optionally, the arc-shaped angle plate has an arc-shaped hole, and the wall of the arc-shaped hole has a sliding groove. A pulley is rotatably mounted on one end of the pointing rod facing the arc-shaped angle plate. The pulley is located at the arc-shaped hole, and the circumferential wall of the pulley is located in the sliding groove.

[0031] By adopting the above technical solution, the pulley and the slide groove cooperate to transform the sliding friction between the pointing rod and the arc-shaped angle plate into rolling friction, thereby reducing operating resistance and improving adjustment smoothness. At the same time, the constraint of the slide groove on the pulley can enhance the radial stability of the pointing rod.

[0032] Optionally, the angle scale range of the arc-shaped angle plate is 0°-60°, wherein;

[0033] When the angle scale is 0°, the vertical adjustment valve plate of the discharge port is completely closed to create a negative pressure feed port.

[0034] When the angle scale is 60°, the opening and closing angle between the vertical adjusting valve plate of the discharge port and the negative pressure feed port is at its maximum.

[0035] By adopting the above technical solution, the scale range of 0°-60° covers all working conditions from fully closed to maximum opening. The scale range matches the actual rotation stroke of the valve plate, making it easy for operators to quickly position the valve.

[0036] Optionally, a sealing groove is provided at the end of the high-pressure impact chamber end cap facing the bottom of the material hopper, and a high-temperature resistant silicone sealing ring is embedded in the sealing groove.

[0037] By adopting the above technical solution, when the operator pulls the inclined arc plate forward, the base plate touches the pressure sensor. After receiving the pressure signal, the controller controls the lighting to turn on, thereby providing illumination for the arc plate and making it easier for the operator to clearly read the angle scale in environments with insufficient light or dust. When the inclined arc plate is reset and completely blocks the inclined arc groove, the base plate separates from the pressure sensor and the lighting automatically turns off, achieving a balance between energy saving and convenient operation.

[0038] In a second aspect of the invention, a quantitative control method is provided. The method includes:

[0039] Obtain the historical opening and closing angle θ of the vertical regulating valve plate at the discharge port and the historical material production conditions under this historical opening and closing angle θ;

[0040] Based on the historical opening and closing angle θ and the comprehensive coefficient of the throttling resistance of the whole machine's air duct. Exhaust fan speed , Compensation value for negative pressure at zero speed of the fan base Determine the no-load negative pressure ;

[0041] According to no-load negative pressure and preset correction coefficient Determine the working negative pressure ;

[0042] The theoretical discharge rate is determined based on the historical opening and closing angle θ, the preset first fitting coefficient m, and the preset second fitting coefficient n. ;

[0043] According to working negative pressure and theoretical output rate Determine the actual discharge rate ;

[0044] Based on historical opening and closing angles θ and working negative pressure Actual discharge rate And a comparison table of historical material production conditions;

[0045] Obtain the required material production status;

[0046] Determine the required opening and closing angle of the vertical regulating valve plate at the discharge port based on the required material production conditions and the reference table.

[0047] By adopting the above technical solution

[0048] Optionally, the no-load negative pressure The calculation formula is: ;

[0049] The working negative pressure The calculation formula is: ;

[0050] The theoretical discharge rate The calculation formula is: ;

[0051] The actual discharge rate The calculation formula is: , in, The maximum negative pressure under no-load when the vertical regulating valve plate at the discharge port is at its maximum historical opening angle θ=60°.

[0052] By adopting the above technical solution, and by introducing the comprehensive coefficient of the throttling resistance of the whole machine air duct and the base negative pressure compensation value of the fan at zero speed, a nonlinear relationship model between no-load negative pressure and fan speed and opening angle was established. Combined with the material correction coefficient and efficiency factor, the accurate conversion from theoretical discharge rate to actual discharge rate was realized, providing a reliable mathematical basis for quantitative control.

[0053] Optionally, the overall throttling resistance coefficient of the whole machine's air duct It is 0.026;

[0054] The base negative pressure compensation value at zero speed of the fan The Pa is 12.5.

[0055] The preset first fitting coefficient m is -0.0012;

[0056] The preset second fitting coefficient n is 0.142.

[0057] By adopting the above technical solution, the above coefficients, after being calibrated by type testing, can be directly substituted into the formula for calculation, which simplifies the on-site debugging process and ensures the reproducibility of control strategies between different devices.

[0058] Optionally, when the material is dry, hard grain, =0.85-0.90; when the material is a high-moisture, sticky grain, =0.70-0.78.

[0059] By adopting the above technical solutions, dry hard grains have good flowability and low inter-particle friction, with a correction coefficient close to 1; high-moisture viscous grains are prone to agglomeration and have poor flowability, with a lower correction coefficient. By introducing differentiated corrections based on material type, the adaptability of the control strategy is improved.

[0060] In summary, the present invention has at least one of the following beneficial technical effects:

[0061] 1. By setting the vertical adjustment valve plate of the discharge port to rotate around a plane perpendicular to the end cover, and with the rotation axis parallel to the rotation axis of the blade grinding disc, the tangential airflow channel is not blocked during the adjustment of the valve plate, effectively avoiding the problems of airflow turbulence and uneven negative pressure distribution.

[0062] 2. Through the rigid linkage design of the valve adjustment angle marking structure, real-time visualization and precise positioning of the valve plate opening are achieved, solving the technical defect that the opening of traditional equipment cannot be quantified, and significantly improving the consistency of output of different batches of products;

[0063] 3. By using the deflection design of the negative pressure exhaust fan outlet for irregularly shaped materials, the discharge direction forms an angle of 30°-60° with the outlet end, reducing the air duct resistance and minimizing material accumulation at the outlet.

[0064] 4. By constructing a quantitative comparison table between opening and closing angles, negative pressure parameters, and discharge rates, rapid and precise adjustments based on target production conditions are achieved, reducing reliance on operational experience and improving production efficiency. Attached Figure Description

[0065] Figure 1 This is a schematic diagram of the structure of a vertical adjustment device for a discharge port with lighting function according to an embodiment of this application.

[0066] Figure 2 This is a schematic diagram of the structure when the end cap of the high-pressure impact chamber is closed according to an embodiment of this application.

[0067] Figure 3 This is a schematic diagram of the structure of the embodiment of this application that lacks a negative pressure exhaust outlet for irregularly shaped materials.

[0068] Figure 4 This is a schematic diagram of the structure of the high-pressure impact chamber end cap according to an embodiment of this application.

[0069] Figure 5 This is a schematic diagram of the valve adjustment angle marking structure in an embodiment of this application.

[0070] Figure 6 This is a cross-sectional view of the valve adjustment angle annotation structure in an embodiment of this application.

[0071] Figure 7 yes Figure 6 A magnified view of point A in the middle.

[0072] Figure 8 This is a schematic diagram of the lighting structure according to an embodiment of this application.

[0073] Figure 9 This is a schematic diagram of the placement block in an embodiment of this application.

[0074] Figure 10 This is a schematic diagram of the inclined arc-shaped plate according to an embodiment of this application.

[0075] Figure 11 This is a system diagram of the lighting structure implemented in this application.

[0076] Figure 12 This is a flowchart of a quantitative control method according to an embodiment of this application.

[0077] Explanation of reference numerals in the attached diagram: 1. Material silo; 2. High-pressure material impact chamber; 3. High-pressure impact chamber end cap; 31. Switch hinge; 32. Sealing groove; 33. High-temperature resistant silicone sealing ring; 4. Negative pressure feed inlet; 5. Discharge port vertical adjustment valve plate; 6. Valve adjustment angle marking structure; 61. Arc-shaped angle plate; 611. Angle scale; 612. Limiting groove; 613. Arc-shaped hole; 614. Slide groove; 62. Pointing rod; 621. 622. Receiving groove; 63. Pulley; 64. Limiting assembly; 65. Limiting spring; 66. Limiting ball; 7. Negative pressure exhaust outlet for irregularly shaped materials; 8. Rotating shaft; 9. Lighting structure; 91. Placement block; 911. Inclined arc groove; 912. T-slot; 913. T-block; 914. Auxiliary groove; 92. Base plate; 93. Auxiliary plate; 94. Inclined arc plate; 95. Pressure sensor; 96. Controller; 97. Lighting lamp. Detailed Implementation

[0078] The present invention will be further described in detail below with reference to the accompanying drawings.

[0079] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

[0080] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0081] The embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0082] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a vertical adjustment device for a discharge port with lighting function includes a material silo 1, a high-pressure material impact chamber 2, a high-pressure impact chamber end cover 3, a negative pressure induced material outlet 4, a vertical adjustment valve plate for the discharge port 5, a valve adjustment angle marking structure 6, and a negative pressure induced irregular material outlet 7, wherein:

[0083] The material silo 1 serves as the mounting base for the entire device and is made of high-strength cast iron or stainless steel, possessing excellent structural stability and corrosion resistance.

[0084] The high-pressure impact chamber 2 is located inside the material silo 1, and a high-speed rotating blade grinding disc (not shown) is installed inside the high-pressure impact chamber 2. The material is crushed into powder under the high-speed impact of the blade grinding disc, and at the same time diffuses towards the cavity wall of the high-pressure impact chamber 2 under the action of centrifugal force. The blade grinding disc rotates around the vertical axis, generating a high-speed airflow along the tangential direction during the crushing process.

[0085] The high-pressure impact chamber end cover 3 is hinged to the material bottom hopper 1 via a switch hinge 31, and is used to open or close the high-pressure impact chamber 2. A sealing groove 32 is provided at the end of the high-pressure impact chamber end cover 3 facing the material bottom hopper 1, and a high-temperature resistant silicone sealing ring 33 is embedded in the sealing groove 32. It should be noted that the high-pressure impact chamber end cover 3 is fixed by fixing bolts when the high-pressure impact chamber 2 is closed.

[0086] The switch hinge 31 adopts a detachable heavy-duty hinge structure. One end of the switch hinge 31 is fixed to the side wall of the material hopper 1, and the other end is fixedly connected to the high-pressure impact chamber end cover 3. The hinge shaft of the switch hinge 31 is supported by high-strength alloy steel, which has a strong load-bearing capacity and facilitates the quick opening and closing of the high-pressure impact chamber end cover 3, so as to facilitate internal maintenance and cleaning.

[0087] The negative pressure feed inlet 4 is located on the end cover 3 of the high pressure impact chamber. The negative pressure feed inlet 4 is a rectangular or elliptical through hole. The negative pressure feed inlet 4 is the main channel for material to be discharged from the high pressure impact chamber 2 and is directly connected to the inside of the high pressure impact chamber 2.

[0088] The vertical adjustment valve plate 5 at the discharge port is mounted on the outer end face of the high-pressure impact chamber end cover 3 via a rotating shaft 8, and is located outside the outlet end of the negative pressure feed inlet 4. The axis of the rotating shaft 8 is parallel to the rotation axis (i.e., the vertical axis) of the blade grinding disc, allowing the vertical adjustment valve plate 5 to rotate about the pivot point in a plane perpendicular to the end face of the high-pressure impact chamber end cover 3. The end face of the high-pressure impact chamber end cover 3 is parallel to the direction of the tangential airflow generated by the blade grinding disc, therefore the vertical adjustment valve plate 5 at the discharge port will not obstruct the tangential airflow channel during rotation adjustment.

[0089] The vertical adjustment valve plate 5 of the discharge port is mounted on the outer end face of the high pressure impact chamber end cover 3 via the rotating shaft 8 and is located at the negative pressure feed port 4. The vertical adjustment valve plate 5 of the discharge port rotates around the rotating shaft 8 to adjust the opening size of the negative pressure feed port 4.

[0090] The valve adjustment angle marking structure 6 is horizontally fixed on the high-pressure impact chamber end cover 3 and is used to display the opening size of the negative pressure feed port 4 in real time.

[0091] The cross-sectional shape of the negative pressure induced draft material outlet 7 is irregular, with its outlet end forming an angle of 30°-60° with the discharge direction of the negative pressure induced draft material inlet 4. This improves the air outlet angle, reduces duct resistance, and prevents material accumulation at the outlet. The negative pressure induced draft material outlet 7 is connected to a downstream conveying pipeline (not shown) via a flange.

[0092] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the valve adjustment angle marking structure 6 includes an arc-shaped angle plate 61, a guide rod 62, and a limiting component 63. The arc-shaped angle plate 61 is horizontally fixed on the high-pressure impact chamber end cover 3. An angle scale 611 is engraved on the arc-shaped angle plate 61. The guide rod 62 is fixedly connected to the rotating shaft 8, thereby forming a rigid linkage structure with the vertical adjustment valve plate 5 of the discharge port. The vertical adjustment valve plate 5 of the discharge port rotates synchronously with the guide rod 62, and the guide rod 62 is located above the arc-shaped angle plate 61. The limiting component 63 is installed at the end of the guide rod 62 facing the arc-shaped angle plate 61, and is used to fix the guide rod 62.

[0093] It should be noted that the angle scale 611 of the arc-shaped angle plate 61 ranges from 0° to 60°, where;

[0094] When the angle scale 611 is 0°, the vertical regulating valve plate 5 of the discharge port is fully closed, and the negative pressure feed port 4 is drawn in.

[0095] When the angle scale 611 is 60°, the opening and closing angle between the vertical regulating valve plate 5 at the discharge port and the negative pressure feed port 4 is at its maximum.

[0096] The bottom end of the arc-shaped angle plate 61 is provided with multiple limiting grooves 612, which are equidistantly distributed along the circumference of the arc-shaped angle plate 61. The bottom end of the pointing rod 62 is provided with a receiving groove 621, and the limiting component 63 is located in the receiving groove 621. The limiting component 63 includes a limiting spring 631 and a limiting ball 632. One end of the limiting spring 631 is fixedly connected to the bottom of the receiving groove 621, and the other end is fixedly connected to the limiting ball 632. The end of the limiting ball 632 facing away from the limiting spring 631 is inserted into the limiting groove 612.

[0097] When the operator rotates the pointer rod 62, the wall of the limiting groove 612 applies pressure to the limiting ball 632, causing the limiting ball 632 to slide into the receiving groove 621. The limiting ball 632 compresses the limiting spring 631. When the opening of the receiving groove 621 aligns with the opening of the next limiting groove 612, the limiting spring 631 returns to its original position, and the limiting spring 631 drives the limiting ball 632 to slide into the next limiting groove 612. This process repeats until the desired position is reached. It should be noted that the limiting component 63 is designed to prevent the vertical regulating valve plate 5 at the discharge port from moving due to equipment vibration or airflow impact without human intervention.

[0098] An arc-shaped hole 613 is provided on the arc-shaped angle plate 61, and a groove 614 is provided on the wall of the arc-shaped hole 613. A pulley 622 is rotatably mounted on one end of the pointing rod 62 facing the arc-shaped angle plate 61. The pulley 622 is located at the arc-shaped hole 613, and the circumferential wall of the pulley 622 is located within the groove 614. The pulley 622 and the groove 614 cooperate to convert sliding friction into rolling friction, reduce operating resistance, and at the same time prevent the operator from bending the pointing rod 62 upwards due to force when moving it.

[0099] This device is installed on a grain processing mill, which is located inside the factory building. The lighting equipment in the factory building is suspended from the ceiling and is a certain distance away from the grain processing mill, which has a certain impact on the workers' ability to rotate the pointer 62. At the same time, dust in the factory building will also adhere to the curved angle plate 61, which will have a certain impact on the workers' viewing angle. Therefore, this device is equipped with a lighting structure 9 to illuminate the angle scale 611.

[0100] like Figure 1 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the lighting structure 9 includes a placement block 91, a base plate 92, an auxiliary plate 93, an inclined arc plate 94, a pressure sensor 95, a controller 96, and a lighting lamp 97, wherein;

[0101] A placement block 91 is fixedly installed at the top of the material hopper 1. The front end of the placement block 91 has an inclined arc-shaped groove 911. A T-shaped groove 912 is opened on the left and right walls of the inclined arc-shaped groove 911. A T-shaped block 913 is slidably installed in each T-shaped groove 912. An auxiliary groove 914 is opened on the upper and lower walls of the inclined arc-shaped groove 911. Two auxiliary plates 93 are provided, and the two auxiliary plates 93 are fixedly connected to the two T-shaped blocks 913 respectively. A bottom plate 92 is fixedly installed at the rear end of the two auxiliary plates 93 and slides in the auxiliary groove 914. An inclined arc-shaped plate 94 is rotatably installed between the two auxiliary plates 93, and a handle is installed at the front end of the inclined arc-shaped plate 94. A pressure sensor 95 is fixedly installed on the front wall of one of the auxiliary grooves 914. A lighting lamp 97 is installed at the bottom end of the inclined arc-shaped plate 94. A controller 96 is electrically connected to the lighting lamp 97 and the pressure sensor 95 respectively.

[0102] When the staff needs to use the lighting 97, they pull the handle forward, which moves the inclined arc plate 94 forward, and then moves the auxiliary plate 93 and the base plate 92 forward. When the base plate 92 touches the pressure sensor 95, the pressure sensor 95 sends a pressure signal to the controller 96. The controller 96 controls the lighting 97 to start working. Then the staff rotates the inclined arc plate 94, so that the lighting 97 can illuminate the arc angle plate 61, making it easier for the staff to see the angle scale 611 on the arc angle plate 61.

[0103] When the staff no longer needs to use the lighting 97, the staff resets the inclined arc plate 94, and then moves the inclined arc plate backward until the inclined arc plate 94 completely blocks the opening of the inclined arc groove 911. The base plate 92 separates from the pressure sensor 95. After the controller 96 does not receive the pressure signal from the pressure sensor 95, it controls the lighting 97 to stop working.

[0104] It should be noted that since the arc-shaped angle plate 61 is not located on the vertical central axis of the end cover of the high-pressure impact chamber 2, the placement block 91 has an inclined arc-shaped groove 911, and the lighting lamp 97 on the inclined arc plate 94 can be focused on the arc-shaped angle plate 61.

[0105] It should also be noted that a rotating rod (not shown) is fixedly installed at each of the left and right ends of the inclined arc plate 94, and a rotating groove (not shown) is opened at the opposite end of each of the two auxiliary plates 93. The rotating rod is tightly installed in the rotating groove. Without human intervention, the two will not rotate relative to each other due to the friction between the rotating rod and the auxiliary plate 93.

[0106] like Figures 1 to 11 As shown, the working principle and adjustment process of this device are as follows:

[0107] Equipment standby state: When the equipment is in standby or stopped, the vertical adjustment valve plate 5 at the discharge port is in the 0° fully closed position, completely blocking the negative pressure feed inlet 4. At this time, the indicator rod 62 is simultaneously stopped at the 0° mark, visually indicating that the negative pressure feed inlet 4 is fully closed. There is no material flow at the negative pressure feed inlet 4, and the negative pressure formed by the negative pressure exhaust fan outlet 7 for irregularly shaped materials cannot guide material outward.

[0108] Opening adjustment process: The operator applies external force to the vertical adjustment valve plate 5 of the discharge port, causing it to rotate around the rotating shaft 8. Since the pointing rod 62 is fixed to the rotating shaft 8, the pointing rod 62 and the vertical adjustment valve plate 5 of the discharge port form a rigid linkage. Every time the pointing rod 62 swings at a certain angle, the vertical adjustment valve plate 5 of the discharge port will move synchronously and at the same angle. The operator can accurately control the opening according to the angle scale 611 on the arc angle plate 61.

[0109] Reduce discharge rate: When it is necessary to reduce the powder discharge speed and discharge rate, reverse the swing of the vertical adjustment valve plate 5 at the discharge port to narrow the opening. The guide rod 62 drives the vertical adjustment valve plate 5 at the discharge port to swing back to the small angle scale 611 (10°-20°). The negative pressure feed port 4 channel narrows, and the airflow and negative pressure decrease accordingly, slowing down the powder discharge rate. This setting is suitable for fine operation scenarios such as micro-sample crushing and low-speed processing of ultrafine powders.

[0110] Increased discharge capacity: When it is necessary to improve powder output efficiency and increase discharge capacity, swing the forward-moving guide rod 62. The guide rod 62 drives the vertical adjustment valve plate 5 of the discharge port to swing back to the large angle scale 611 (40°-60°), widening the opening. The air volume and negative pressure of the negative pressure feeding port 4 channel are enhanced, the negative pressure feeding capacity is improved, and the powder is quickly drawn out. This setting is suitable for scenarios such as large-volume raw material coarse crushing pretreatment and high-capacity continuous production line operation.

[0111] Equipment shutdown: When the equipment stops working, swing the pointer rod 62 back to the 0° fully closed position, and the vertical adjustment valve plate 5 of the discharge port will return to the 0° scale synchronously. The vertical adjustment valve plate 5 of the discharge port will block the negative pressure feed port 4, and the linkage mechanism will complete one complete operation cycle.

[0112] like Figure 12 As shown, a quantitative control method specifically includes:

[0113] Step S1: Obtain the historical opening and closing angle θ of the vertical regulating valve plate 5 at the discharge port and the historical material production conditions under this historical opening and closing angle θ.

[0114] Step S2; Based on the historical opening and closing angle θ and the overall airflow duct throttling resistance coefficient... Exhaust fan speed , Compensation value for negative pressure at zero speed of the fan base Determine the no-load negative pressure .

[0115] No-load negative pressure The calculation formula is: ;

[0116] in, This is the no-load negative pressure, in Pa.

[0117] The equipment's air ducts, irregular outlets, and valve plate structure were calibrated through type testing, and the actual measurements of this device were also performed. ;

[0118] The new core control variable is the induced draft fan speed, in r / min, which represents the total system flow rate.

[0119] This is the base negative pressure compensation value for zero-speed fan operation. .

[0120] When θ=0°, the valve is fully closed, and the negative pressure is equal to the total static pressure of the fan at full speed. ,Right now .

[0121] Step S3: Based on the no-load negative pressure and preset correction coefficient Determine the working negative pressure .

[0122] Working negative pressure The calculation formula is: ;

[0123] When the material is dry, hard grains =0.85-0.90; when the material is a high-moisture, sticky grain, =0.70-0.78.

[0124] Step S4: Determine the theoretical discharge rate based on the historical opening and closing angle θ, the preset first fitting coefficient m, and the preset second fitting coefficient n. .

[0125] Theoretical output rate for: ;

[0126] The first fitting coefficient m is preset to -0.0012; the second fitting coefficient n is preset to 0.142.

[0127] Step S5: Based on the working negative pressure and theoretical output rate Determine the actual discharge rate .

[0128] Actual discharge rate The calculation formula is: , ,in, The maximum negative pressure under no-load when the vertical regulating valve plate at the discharge port is at its maximum historical opening angle θ=60°.

[0129] Step S6: Based on the historical opening and closing angle θ and working negative pressure Actual discharge rate And a comparison table of historical material production conditions.

[0130] Working negative pressure This refers to the working negative pressure at this historical opening and closing angle θ;

[0131] Actual discharge rate This represents the actual discharge rate at this historical opening / closing angle θ.

[0132] Historical material production conditions refer to the material production conditions at this historical opening and closing angle θ.

[0133] Multiple sets of the above data will be generated under historical opening and closing angles θ. The optimal data will be selected as the working negative pressure for historical opening and closing angles θ. Actual discharge rate Based on historical material production conditions, a comparison table was constructed for different historical opening and closing angles θ, as shown in the table below:

[0134] Comparison Table

[0135]

[0136] Step S7: Obtain the required material production conditions.

[0137] Step S8: Determine the required opening and closing angle of the vertical regulating valve plate 5 at the discharge port according to the required material production conditions and the reference table.

[0138] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the foregoing disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this invention.

Claims

1. A vertical adjustment device for a discharge port with lighting function, characterized in that, include: Material silo (1); The high-pressure impact chamber (2) for materials is located inside the bottom silo (1); The high-pressure impact chamber end cap (3) is hinged to the material bottom hopper (1) via a switch hinge (31) and is used to open or close the high-pressure impact chamber (2) of the material. The negative pressure feed inlet (4) is located on the end cover (3) of the high pressure impact chamber and is used for material discharge; The vertical adjustment valve plate (5) of the discharge port is mounted on the outer end face of the high pressure impact chamber end cover (3) via a rotating shaft (8) and is located at the negative pressure feed port (4). The vertical adjustment valve plate (5) of the discharge port rotates around the rotating shaft (8) to adjust the opening size of the negative pressure feed port (4). The valve adjustment angle marking structure (6) is horizontally fixed on the end cover (3) of the high pressure impact chamber and is used to display the opening size of the negative pressure feed port (4) in real time. The negative pressure exhaust shaped material outlet (7) is mounted on the end cover (3) of the high pressure impact chamber and is connected to the negative pressure exhaust material inlet (4). The outlet end of the negative pressure exhaust shaped material outlet (7) forms an angle of 30°-60° with the discharge direction of the negative pressure exhaust material inlet (4). The lighting structure (9) is installed in the bottom silo (1) and is used to illuminate the valve adjustment angle marking structure (6); The lighting structure (9) includes a placement block (91), a base plate (92), an auxiliary plate (93), an inclined arc plate (94), a pressure sensor (95), a controller (96), and a lighting lamp (97), wherein; The placement block (91) is fixedly installed on the top of the material silo (1). The front end of the placement block (91) is provided with an oblique arc groove (911). A T-shaped groove (912) is provided on each opposite groove wall of the oblique arc groove (911). A T-shaped block (913) is slidably installed in each T-shaped groove (912). An auxiliary groove (914) is provided on the other set of opposite groove walls of the oblique arc groove (911). Two auxiliary plates (93) are provided, and the two auxiliary plates (93) are respectively fixedly connected to two T-blocks (913); The base plate (92) is fixedly installed at the rear end of the two auxiliary plates (93) and slides in the auxiliary groove (914); The inclined arc plate (94) is rotatably mounted between the two auxiliary plates (93); The pressure sensor (95) is fixedly installed on the front wall of one of the auxiliary slots (914); The lighting lamp (97) is installed at the bottom end of the inclined arc plate (94); The controller (96) is electrically connected to the lighting lamp (97) and the pressure sensor (95), respectively.

2. The vertical adjustment device for a discharge port with lighting function according to claim 1, characterized in that, The valve adjustment angle marking structure (6) includes an arc-shaped angle plate (61), a guide rod (62), and a limiting component (63). The arc-shaped angle plate (61) is horizontally fixed on the end cover (3) of the high-pressure impact chamber. An angle scale (611) is engraved on the arc-shaped angle plate (61). The guide rod (62) is fixedly connected to the rotating shaft (8), thereby forming a rigid linkage structure with the vertical adjustment valve plate (5) of the discharge port. The vertical adjustment valve plate (5) of the discharge port rotates synchronously with the guide rod (62). The limiting component (63) is installed at one end of the guide rod (62) facing the arc-shaped angle plate (61) and is used to position the angle of the guide rod (62).

3. The vertical adjustment device for a discharge port with lighting function according to claim 2, characterized in that, The arc-shaped angle plate (61) has a plurality of limiting grooves (612) at one end facing the guide rod (62), and the plurality of limiting grooves (612) are equidistantly distributed along the circumferential direction of the arc-shaped angle plate (61). The guide rod (62) has a receiving groove (621) at one end facing the arc-shaped angle plate (61), and the limiting component (63) is located in the receiving groove (621). The limiting component (63) includes a limiting spring (631) and a limiting ball (632). One end of the limiting spring (631) is fixedly connected to the bottom of the receiving groove (621), and the other end is fixedly connected to the limiting ball (632). The end of the limiting ball (632) facing away from the limiting spring (631) is inserted into the limiting groove (612).

4. A vertical adjustment device for a discharge port with lighting function according to claim 3, characterized in that, The arc-shaped angle plate (61) has an arc-shaped hole (613), and a sliding groove (614) is provided on the wall of the arc-shaped hole (613). A pulley (622) is rotatably installed on one end of the pointing rod (62) facing the arc-shaped angle plate (61). The pulley (622) is located at the arc-shaped hole (613), and the circumferential wall of the pulley (622) is located in the sliding groove (614).

5. A vertical adjustment device for a discharge port with lighting function according to claim 2, characterized in that, The angle scale (611) of the arc-shaped angle plate (61) has a range of 0°-60°, wherein; When the angle scale (611) is 0°, the vertical adjustment valve plate (5) of the discharge port is completely closed and the negative pressure feed port (4) is closed; When the angle scale (611) is 60°, the opening and closing angle between the vertical adjustment valve plate (5) of the discharge port and the negative pressure feed port (4) is at its maximum.

6. A vertical adjustment device for a discharge port with lighting function according to claim 1, characterized in that, The high-pressure impact chamber end cap (3) has a sealing groove (32) at one end facing the material bottom hopper (1), and a high-temperature resistant silicone sealing ring (33) is embedded in the sealing groove (32).

7. A quantitative control method, characterized in that, include: Obtain the historical opening and closing angle θ of the vertical regulating valve plate (5) at the discharge port and the historical material production conditions under this historical opening and closing angle θ; Based on the historical opening and closing angle θ and the comprehensive coefficient of the throttling resistance of the whole machine's air duct. Exhaust fan speed , Compensation value for negative pressure at the base of the fan at zero speed Determine the no-load negative pressure ; According to no-load negative pressure and preset correction coefficient Determine the working negative pressure ; The theoretical discharge rate is determined based on the historical opening and closing angle θ, the preset first fitting coefficient m, and the preset second fitting coefficient n. ; According to working negative pressure and theoretical output rate Determine the actual discharge rate ; Based on historical opening and closing angles θ and working negative pressure Actual discharge rate And a comparison table of historical material production conditions; Obtain the required material production status; The required opening and closing angle of the vertical regulating valve plate (5) at the discharge port is determined according to the required material production conditions and the reference table.

8. The quantitative control method according to claim 7, characterized in that, The no-load negative pressure The calculation formula is: ; Working negative pressure The calculation formula is: ; The theoretical discharge rate The calculation formula is: ; The actual discharge rate The calculation formula is: , ,in, The maximum negative pressure under no-load when the vertical regulating valve plate (5) at the discharge port is at the maximum historical opening and closing angle θ=60°.

9. A quantitative control method according to claim 8, characterized in that, The preset The overall throttling resistance coefficient of the whole machine's air duct It is 0.026; The base negative pressure compensation value at zero speed of the fan The Pa is 12.

5. The preset first fitting coefficient m is -0.0012; The preset second fitting coefficient n is 0.

142.

10. A quantitative control method according to claim 8, characterized in that, When the material is dry, hard grains =0.85-0.90; when the material is a high-moisture, sticky grain, =0.70-0.78.

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