CN113277331B - High-balance storage cabinet discharging method - Google Patents

High-balance storage cabinet discharging method Download PDF

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Publication number
CN113277331B
CN113277331B CN202110622689.1A CN202110622689A CN113277331B CN 113277331 B CN113277331 B CN 113277331B CN 202110622689 A CN202110622689 A CN 202110622689A CN 113277331 B CN113277331 B CN 113277331B
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section
bottom belt
storage cabinet
flow
materials
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CN113277331A (en
Inventor
张喆
解啟宏
吕东
高晓
湛小溪
康军
陈小波
王享誉
赵鑫
高景美
马治义
詹先文
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China Tobacco Shaanxi Industrial Co Ltd
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China Tobacco Shaanxi Industrial Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/005—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/42—Devices for emptying otherwise than from the top using belt or chain conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/48—Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems
    • B65G65/4881—Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems rotating about a substantially horizontal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
    • B65G69/0458—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials with rotating means, e.g. tables, arms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The high-balance storage cabinet discharging method is characterized in that according to the distribution characteristics of materials on a bottom belt in a storage cabinet, the material blending process on the bottom belt is divided into a material head front spacing section, a material head section, a normal discharging section, a tail material section and a cleaning section, the material thickness of the advancing material head section of the bottom belt is adjusted by a material shifting roller, and a material height detection device for detecting the material height on the material head section is combined, so that the problem of poor discharging balance caused by uneven pre-filling material head of the material head section is solved, the flow of the material head section, the normal discharging section and the tail material section is determined and controlled, the balance of discharging of the materials on the bottom belt is ensured, the proportion requirement required by the cut stem blending process is met, the actual amount on the blending scale is consistent with the calculated amount, and the material flow is stable.

Description

High-balance storage cabinet discharging method
Technical Field
The invention belongs to the technical field of tobacco shred production, and particularly relates to a high-balance storage cabinet discharging method.
Background
The storage cabinet is a main storage device used on a silk-making production line, and mainly used for storing materials and adjusting the production of the whole line, and mixing the materials of different production lines to fully absorb moisture and feed liquid applied to the materials in the previous working procedure, so that the moisture content of the materials is balanced, and the process requirements are met. The storage cabinet has two working modes of cabinet entering and cabinet exiting, wherein the cabinet entering is a process of loading materials in the storage cabinet, namely receiving the materials conveyed from an upstream process, and the cabinet exiting is a process of unloading the materials, namely conveying the materials to a downstream process. The head of the cabinet body and the bottom belt for discharging and conveying are the main parts of the cabinet, the head of the cabinet is a frame type steel structural member, and a main transmission shaft, a material stirring roller and a transmission device are arranged on the head of the cabinet. When the storage cabinet is taken out of the cabinet, the bottom belt and the material shifting roller can operate, the material shifting roller is used for loosening materials out of the cabinet, and the conveying bottom belt is used for conveying the materials from the tail of the cabinet body to the head of the cabinet body.
When the materials are mixed and produced, the actual amount of the mixture ratio scale cannot keep up with the calculated amount, and the problem is caused by the following factors through analysis: the distribution of the cut stem materials in the storage cabinet is a trapezoidal stub bar which is away from the material poking roller by a certain distance, and meanwhile, the cut stems are not uniformly distributed in the cabinet (the cross sections of the cut stems are trapezoidal), so that the cut stem materials on the electronic belt scale are too thin during production, the actual amount of the proportioning scale cannot follow the calculated amount, and the proportion required by the cut stem blending process cannot be met, therefore, the problems are necessarily improved.
Disclosure of Invention
The technical problem solved by the invention is as follows: the high-balance storage cabinet discharging method is characterized in that according to the distribution characteristics of materials on a bottom belt in a storage cabinet, the material blending process on the bottom belt is divided into a material head front spacing section, a material head section, a normal discharging section, a tail material section and a cleaning section, the material thickness of the advancing material head section of the bottom belt is adjusted by a material shifting roller, and a material height detection device for detecting the material height on the material head section is combined, so that the problem of poor discharging balance caused by uneven pre-filling material head of the material head section is solved, the flow of the material head section, the normal discharging section and the tail material section is determined and controlled, the balance of discharging of the materials on the bottom belt is ensured, the proportion requirement required by the cut stem blending process is met, the actual amount on the blending scale is consistent with the calculated amount, and the material flow is stable.
The technical scheme adopted by the invention is as follows: a storage cabinet discharging method with high balance comprises the following steps:
1) according to the distribution characteristics of materials on the bottom belt in the storage cabinet, dividing the material blending process on the bottom belt into a material head front spacing section, a material head section, a normal discharging section, a tailing section and a cleaning section;
2) a material shifting roller used for shifting out materials on a bottom belt at a discharge port in the storage cabinet is positioned above a front spacing section of the stub bar through rotation, the thickness of the materials on the advancing top section of the bottom belt is adjusted by the material shifting roller after the material shifting roller is controlled to stop rotating, a material height detection device used for detecting the height of the materials on the front spacing section of the stub bar is adjustably mounted at the outer side wall of the storage cabinet at the tail end of the front spacing section of the stub bar, when the materials on the top section are pushed to the material height set by the material height detection device under the advancing of the bottom belt through the material shifting roller, the detected material height information is fed back to the control unit through the material height detection device, and the control unit controls a motor of the material shifting roller to drive the material shifting roller to rotate and then stop pushing;
3) according to the direct proportion relationship between the advancing distance of the bottom belt and the pulse number of the encoder in the bottom belt, the propelling pulse X of the bottom belt during the pushing of the material shifting roller in the step 2) is calculated, and the specific calculation process of the propelling pulse X of the bottom belt at the interval section in front of the material head is as follows:
Figure BDA0003100531370000031
Figure BDA0003100531370000032
in the above formula, S is the length of the interval section in front of the stub bar, LFull lengthFor the length of the bottom band half-cycle in the storage cabinet, PGeneral assemblyThe total pulse is the total pulse when the bottom belt in the storage cabinet advances for half cycle length;
4) calculating the material flow of the normal discharging section and the motor frequency in the bottom belt under the flow: assume that the flow rate is SDIn time, the material can be discharged to the rightMeets the requirement of material mixing proportion in the normal discharge section, and simultaneously, at SDThe working frequency of the motor in the bottom belt under the flow is FDAnd the bottom band is at the working frequency FDThe lower speed is v, and the material height H of the material in the normal discharging section is M according to the total material amount of the distributed material in the storage cabinetmaxMaterial width W and length L of stub barInAnd length L of tailing sectionOutAnd calculating the speed v of the bottom belt at the normal discharging section, wherein the specific calculation formula is as follows:
Figure BDA0003100531370000033
Figure BDA0003100531370000034
at maximum operating frequency F of the motormaxVelocity v of the lower sole beltmaxFor a known quantity, according to the fact that the advancing speed of the bottom belt is in a direct proportion relation with the motor frequency of the bottom belt, namely:
Figure BDA0003100531370000035
to obtain
Figure BDA0003100531370000036
5) Respectively calculating the flow S of the material head sectionInAnd tailing section flow SOut: because the instantaneous flow of out of the cabinet of material and the instantaneous height of material are in inverse proportion, and are in direct proportion with the motor frequency of bottom band, according to the normal play material section flow change that sets up, the computational formula of stub bar section and tails section is as follows:
Figure BDA0003100531370000041
Figure BDA0003100531370000042
in the above formula, V is the maximum regulated flow value calculated according to the inverse proportion relation between the height of the material on the bottom belt and the flow, LRemains ofFor the remaining length of material in the previous storage bin, LGeneral assemblyThe total length of the materials in the storage cabinet after the material distribution is finished.
The material height detection device comprises a photoelectric switch, and an emitting electrode and a receiving electrode of the photoelectric switch are corresponding in position and respectively face the observation windows on the two side walls of the storage cabinet.
Furthermore, L-shaped fixing plates are fixed on side frames on two side walls of the storage cabinet, vertical plate surfaces of the L-shaped fixing plates are arranged towards the observation window, waist-shaped long holes are formed in the vertical plate surfaces of the L-shaped fixing plates along the horizontal direction of the L-shaped fixing plates, and emitting electrodes and receiving electrodes of the photoelectric switches are respectively locked and fixed in the waist-shaped long holes of the L-shaped fixing plates on the corresponding sides.
Compared with the prior art, the invention has the advantages that:
1. according to the technical scheme, the storage cabinet discharging method with high balance divides the material blending process on the bottom belt into a material head front spacing section, a material head section, a normal discharging section, a tail material section and a cleaning section according to the distribution characteristics of the materials on the bottom belt in the storage cabinet, adjusts the material thickness of the advancing material head section of the bottom belt by a material shifting roller, and solves the problem of poor discharging balance caused by uneven rarefaction of the pre-filled material head of the material head section by combining a material height detection device for detecting the material height on the material head section;
2. according to the technical scheme, the material height detection device adopts the photoelectric switch which is arranged on the side wall of the storage cabinet through the L-shaped fixing plate, provides a limitation condition of the maximum thickness for the adjustment of the material thickness of the stub bar section by the material shifting roller, and enables the position of the photoelectric switch arranged in the waist-shaped long hole to be adjustable by processing the waist-shaped long hole on the vertical plate surface of the L-shaped fixing plate, so that the accuracy of the adjustment of the material thickness of the stub bar section is ensured, and the adjustment precision is improved;
3. this technical scheme is through confirming and control to the stub bar section, normally go out the material section and the tailing section flow, guarantee the stub bar section, the equilibrium of the material ejection of compact is taken at the bottom of normally going out material section and the tailing section, through the adjustment to the material flow of tailing section, be used for compensating the uneven drawback of tailing section material distribution, thereby effectively guarantee the equilibrium of each section material ejection of compact at the bottom of taking, satisfy the required proportion requirement of stalk silk blending process, make the ratio weigh actual volume accord with the calculated amount, make material flow stable.
Drawings
FIG. 1 is a graph showing the actual flow rate trend corresponding to the collection time and collection value in the conventional cut stem blending process;
FIG. 2 is a schematic view of the discharge areas of the present invention divided according to the distribution characteristics of the material on the bottom belt;
FIG. 3 is a schematic view of the installation structure of the photoelectric switch on the storage cabinet according to the present invention;
fig. 4 is an actual flow trend graph corresponding to the collection time and the collection value in the cut stem blending process after the cut stem blending device is used.
Detailed Description
In the following, an embodiment of the present invention will be described in conjunction with fig. 1 to 4, so as to clearly and completely describe the technical solutions, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, not the whole embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
A storage cabinet discharging method with high balance comprises the following steps:
1) according to the distribution characteristics of materials on a bottom belt 6 in a storage cabinet 10, the material blending process on the bottom belt 6 is divided into a front stub bar spacing section 1, a stub bar section 2, a normal discharging section 3, a tailing section 4 and a cleaning section 5;
after each section of materials on the bottom belt 6 are divided into a material head front spacing section 1, a material head section 2, a normal discharging section 3, a tailing section 4 and a cleaning section 5 according to the distribution characteristics of the materials on the bottom belt 6, the segmentation model is analyzed and determined, and the problems to be solved mainly comprise two problems, one is to solve the problem that the material thickness of the material head front spacing section 1 is uneven, and the other is to solve the problem of the discharging speed of the material head section 2, the normal discharging section 3 and the tailing section 4;
2) a material shifting roller 9 which is used for shifting materials on a bottom belt 6 out through rotation at a discharge port in a storage cabinet 10 is positioned above a material head front spacing section 1, the material thickness of a material head section 2 on the advancing bottom belt 6 is adjusted by the material shifting roller 9 after the material shifting roller 9 is controlled to stop rotating, a material height detection device for detecting the material height on the material head front spacing section 1 is installed at the position of the outer side wall of the storage cabinet 10 at the tail end of the material head front spacing section 1 in an adjustable mode, when the materials on the material head section 2 are pushed to the material height set by the material height detection device under the advancing of the bottom belt 6 through the material shifting roller 9, the detected material height information is fed back to a control unit through the material height detection device, and the control unit controls a motor of the material shifting roller 9 to drive the material shifting roller 9 to rotate and then stop pushing;
3) according to the direct proportion relationship between the advancing distance of the bottom belt 6 and the pulse number of the encoder in the bottom belt 6, the advancing pulse X of the bottom belt 6 when the material stirring roller 9 pushes the material in the step 2) is calculated, and the specific calculation process of the advancing pulse X of the bottom belt 6 in the front interval section 1 of the material head is as follows:
Figure BDA0003100531370000061
Figure BDA0003100531370000062
in the above formula, S is the length of the material head front spacing section 1, LFull lengthThe length of the bottom belt 6 half-cycle, P, in the storage cabinet 10General assemblyThe total pulse is the total pulse when the bottom belt 6 in the storage cabinet 10 advances for half cycle length;
for example: the length of the interval section 1 in front of the stub bar is measured for a plurality of times, S is measured to be approximately equal to 0.25m, the total pulse when the bottom belt 6 in the storage cabinet 10 advances for half cycle length is set to be 16000,length L of half cycle of bottom tape 6 in storage cabinet 10Full length6.8m, so the calculation is done
Figure BDA0003100531370000071
A high detection device is arranged above the material poking roller 9 by a height which is 0.25m before the material poking roller and is formed with an inclination angle after the material is pushed, the material poking roller 9 can be stopped from being pushed when the material is modified in procedure to block the high detection device, the thickness of the material head section 2 is adjusted, and equipment damage is avoided;
according to the distribution characteristics of materials on a bottom belt 6 in a storage cabinet 10, the material blending process on the bottom belt 6 is divided into a stub bar front spacing section 1, a stub bar section 2, a normal discharging section 3, a tailing section 4 and a cleaning section 5, the material thickness of the material feeding stub bar section 2 on the advancing bottom belt 6 is adjusted by a material stirring roller 9, and a material height detection device for detecting the height of the material on the stub bar section 2 is combined, so that the problem of poor discharging balance caused by uneven pre-filling stub bars of the stub bar section 2 is solved;
4) calculating the material flow of the normal discharging section 3 and the motor frequency in the bottom belt 6 under the flow: assume that the flow rate is SD(different cigarette brands) can meet the requirement of the mixing proportion of the materials when the materials are discharged to the normal discharge section 3, and simultaneously, the material mixing proportion is SDThe working frequency of the motor in the bottom belt 6 under the flow is FDAnd the bottom band 6 is at the working frequency FDThe lower speed is v, the material height H of the material in the normal discharging section 3 is M according to the total material amount of the distributed material in the storage cabinet 10maxAnd width W of material, length L of stub bar section 2InAnd length L of tailing section 4OutAnd calculating the speed v of the bottom belt 6 at the normal discharging section 3, wherein the specific calculation formula is as follows:
Figure BDA0003100531370000072
Figure BDA0003100531370000073
the motor with the bottom belt 6 is operated at the maximum frequency FmaxVelocity v of the lower belt 6maxAs a known quantity, according to the fact that the advancing speed of the bottom tape 6 is in direct proportion to the motor frequency of the bottom tape 6, namely:
Figure BDA0003100531370000081
to obtain
Figure BDA0003100531370000082
5) Respectively calculating the 2 flow S of the material head sectionInAnd 4 flows S of tailing sectionOut: because the instantaneous flow of out of cabinet of material and the instantaneous height of material are inversely proportional, and directly proportional with the motor frequency of bottom band 6, according to the normal play 3 flow changes of material section that set up, the computational formula of stub bar section 2 and tails section 4 is as follows:
Figure BDA0003100531370000083
Figure BDA0003100531370000084
in the above formula, V is the maximum regulated flow value calculated according to the inverse ratio of the height of the material on the bottom belt 6 and the flow (because the inverse ratio is infinite as the inverse ratio approaches 0), LThe residue is leftIs the remaining length, L, of the material in the previous bin 10General (1)The total length of the materials in the storage cabinet 10 after the material distribution is finished; the motor evaluation rate of the bottom belt 6 at the foremost part (material head front spacing section 1) of the material head section 2 is usually 50HZ, variable speed adjustment is realized when a certain proportion is reached, and finally the flow of the normal discharging section 3 is set according to the mixing ratio of tobacco shreds with different brands and the main weighing flow of the tobacco shreds so as to meet the requirement of sufficient materials in all stages.
In this scheme, through to stub bar section 2, the confirming and the control of normal ejection of compact section 3 and 4 flows of tails section, guarantee stub bar section 2, the equilibrium of the material ejection of compact on normal ejection of compact section 3 and 4 base bands of tails section 6, through the adjustment to the material flow of tails section 4, be used for compensating 4 uneven drawbacks of distribution of tails section material, thereby effectively guarantee the equilibrium of each section material ejection of compact on the base band 6, satisfy the stalk silk and mix the required proportion requirement of process, make the ratio title on actual volume accord with the calculated amount, make material flow stable.
Observation windows 7 corresponding to the positions of two side walls of the storage cabinet 10 are arranged on the two side walls of the storage cabinet, the material height detection device comprises a photoelectric switch 8, and an emitting electrode and a receiving electrode of the photoelectric switch 8 correspond to the positions of the observation windows 7 on the two side walls of the storage cabinet 10 respectively; specifically, the side frames on the two side walls of the storage cabinet 10 are fixed with L-shaped fixing plates 11, the vertical plate surfaces of the L-shaped fixing plates 11 are arranged facing the observation window 7, waist-shaped long holes 12 are formed on the vertical plate surfaces of the L-shaped fixing plates 11 along the horizontal direction, and the emitting electrodes and the receiving electrodes of the photoelectric switches 8 are respectively locked and fixed in the waist-shaped long holes 12 of the corresponding side L-shaped fixing plates 11; in the structure, the material height detection device adopts the photoelectric switch 8 which is arranged on the side wall of the storage cabinet 10 through the L-shaped fixing plate 11, so that the limitation condition of the maximum thickness is provided for the adjustment of the material thickness of the stub bar section 2 by the material shifting roller 9, and the position of the photoelectric switch 8 which is arranged in the waist-shaped long hole 12 is adjustable by processing the waist-shaped long hole 12 on the vertical plate surface of the L-shaped fixing plate 11, so that the accuracy of the adjustment of the material thickness of the stub bar section 2 is ensured, and the adjustment precision is improved;
after the method is used, the system verification is carried out on the cut stem blending system again, the flow rate of the cut stems is stable between the medium material level and the low material level, the flow rate of the material is stable, the material is sufficient, and the aim of the method in a countermeasure table is achieved!
The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.

Claims (3)

1. A storage cabinet discharging method with high balance is characterized by comprising the following steps:
1) according to the distribution characteristics of materials on a bottom belt (6) in a storage cabinet (10), the material blending process on the bottom belt (6) is divided into a material head front spacing section (1), a material head section (2), a normal discharging section (3), a tail material section (4) and a cleaning section (5);
2) a material shifting roller (9) which is used for shifting materials on a bottom belt (6) out through rotation at a discharge port in a storage cabinet (10) is positioned above a material head front spacing section (1), the material thickness of a material feeding head section (2) of the advancing bottom belt (6) is adjusted by the material shifting roller (9) after the material shifting roller (9) is controlled to stop rotating, a material height detection device which is used for detecting the material height on the material head front spacing section (1) is arranged on the outer side wall of the storage cabinet (10) at the tail end of the material head front spacing section (1) in an adjustable mode, materials on the material head section (2) are pushed to the material height set by the material height detection device under the advancing of the bottom belt (6) through the material shifting roller (9), the detected material height information is fed back to a control unit through the material height detection device, and the material shifting roller (9) is driven to rotate by a motor of the material shifting roller (9) under the control of the control unit to stop pushing;
3) according to the direct proportion relation between the advancing distance of the bottom belt (6) and the pulse number of the encoder in the bottom belt (6), the propelling pulse X of the bottom belt (6) when the material poking roller (9) pushes materials in the step 2) is calculated, and the specific calculation process of the propelling pulse X of the bottom belt (6) in the front interval section (1) of the stub bar is as follows:
Figure FDA0003100531360000011
Figure FDA0003100531360000012
in the above formula, S is the length of the material head front spacing section (1), LFull lengthIs the length of half a circumference, P, of the bottom belt (6) in the storage cabinet (10)General assemblyIs the total pulse when the bottom belt (6) in the storage cabinet (10) advances for half cycle length;
4) calculating the material flow of the normal discharging section (3) and the motor frequency in the bottom belt (6) under the flow: assume that the flow rate is SDDuring the process, the requirement of the material mixing proportion can be met when the material is discharged to the normal discharging section (3), and simultaneously, the material mixing proportion is SDThe working frequency of the motor in the bottom belt (6) under the flow is FDAnd the bottom band (6) is at the working frequency FDThe lower speed is v, and the total material quantity is M according to the material distribution in the storage cabinet (10), the material is in a positive stateMaterial height H in normal discharge section (3)maxThe width W of the material and the length L of the stub bar section (2)InAnd the length L of the tailing section (4)OutAnd calculating the speed v of the bottom belt (6) at the normal discharging section (3), wherein the specific calculation formula is as follows:
Figure FDA0003100531360000021
Figure FDA0003100531360000022
the motor of the bottom belt (6) is operated at the maximum frequency FmaxVelocity v of the lower bottom belt (6)maxAccording to the fact that the advancing speed of the bottom belt (6) is in a direct proportion relation with the motor frequency of the bottom belt (6), namely:
Figure FDA0003100531360000023
to obtain
Figure FDA0003100531360000024
5) Respectively calculating the flow S of the material head section (2)InAnd the flow S of the tailing section (4)Out: because the instantaneous flow of out of the cabinet of material and the instantaneous height of material are in inverse proportion, and are in direct proportion with the motor frequency of bottom band (6), according to the normal play material section (3) flow change that sets up, the computational formula of stub bar section (2) and tails section (4) is as follows:
Figure FDA0003100531360000025
Figure FDA0003100531360000026
in the above formula, V is determined according to the height of the material on the bottom belt (6)Flow in inverse proportion, calculated maximum regulated flow value, LThe residue is leftIs the remaining length, L, of the material in the previous bin (10)General assemblyThe total length of the materials in the storage cabinet (10) after the material distribution is finished.
2. The high-balance storage cabinet discharging method in claim 1, characterized in that: the material height detection device comprises a photoelectric switch (8), wherein the emitting electrode and the receiving electrode of the photoelectric switch (8) are corresponding in position and respectively face the observation windows (7) on the two side walls of the storage cabinet (10).
3. The high-balance storage cabinet discharging method in claim 2, characterized in that: store and be fixed with L shape fixed plate (11) on the side frame on cabinet (10) both sides wall, the vertical plane of L shape fixed plate (11) sets up towards observation window (7), and has waist type slot hole (12) along its horizontal direction system on the vertical plane of L shape fixed plate (11), the projecting pole and the receiver pole of photoelectric switch (8) are fixed in respectively locking the waist type slot hole (12) of corresponding side L shape fixed plate (11).
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