Bulk material quantitative loading method and bulk material quantitative loading system

Abstract

The invention relates to the technical field of loading equipment, in particular to a bulk material quantitative loading method and a bulk material quantitative loading system.The bulk material quantitative loading system comprises a quantifying device, a conveying device and a control unit, the quantifying device comprises a quantifying bin and a weighing sensor, and the weighing sensor is arranged between the quantifying bin and a foundation; the weighing sensor bears the quantitative bin and is electrically connected with the control unit, the control unit and the weighing sensor are matched to measure the weight of the quantitative bin, a discharging gate is arranged on the lower portion of the quantitative bin, and the material receiving end of the conveying device is arranged on the lower portion of the discharging gate. The device has the advantages that static weighing and loading are achieved through the quantitative bin, the loading precision is high, the quantitative bin protection mechanism protects the quantitative bin against external force interference, dust escape during loading can be reduced through the lifting mechanism, and the loading efficiency is improved. And the weighing interference caused by extrusion of the charging gate to the materials in the quantitative bin is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of loading equipment, and in particular to a bulk material quantitative loading method and a bulk material quantitative loading system. Background Art

[0002] One of the existing quantitative loading methods of fallen coal is to use a person driving a forklift to load the fallen coal into the carriage of a transport vehicle. The loading capacity is completely dependent on the experience of the loader. The loaded vehicle is driven to the truck scale for weighing. If the loading capacity exceeds the rated load capacity of the transport vehicle, the transport vehicle returns to unload the excess coal. The unloading process is completed manually or by a forklift. When the loading capacity is much less than the rated load capacity of the transport vehicle, the transport vehicle returns for reloading. The repeated loading and unloading operations of the above-mentioned transport vehicles result in low loading efficiency, poor loading accuracy, poor on-site environment, and poor on-site safety caused by the coming and going of vehicles.

[0003] Another method is to use a car rapid loading station. Although it solves the problem of repeated loading and unloading of transport vehicles, the car rapid loading station has a complex structure, occupies a large space, has a high investment cost, is not suitable for use in places with limited space, and cannot be used in some situations where space is limited.

[0004] The above quantitative loading methods cannot well meet the existing demand for high efficiency, high precision and low cost of loading. Summary of the invention

[0005] The present invention aims to solve the problem that the prior art cannot realize quantitative loading with high efficiency, high precision and low cost, and provides a bulk material quantitative loading method and a bulk material quantitative loading system.

[0006] The technical solution of the present invention is: a bulk material quantitative loading system, including a quantitative device, a conveying device and a control unit, the quantitative device includes a quantitative bin and a weighing sensor, the weighing sensor is arranged between the quantitative bin and a foundation, the weighing sensor carries the quantitative bin, the weighing sensor is electrically connected to the control unit, the control unit and the weighing sensor cooperate to measure the weight of the quantitative bin, a discharge gate is arranged at the lower part of the quantitative bin, the receiving end of the conveying device is arranged at the lower part of the discharge gate, and the unloading height of the discharge end of the conveying device is higher than the height of the receiving end of the next process transportation equipment.

[0007] The quantitative device comprises at least two quantitative bins, and the multiple quantitative bins can be alternately loaded, quantitatively measured and unloaded, and the loading efficiency is high.

[0008] The quantitative device also includes a charging gate, which is arranged at the upper opening of the quantitative bin.

[0009] The loading gate is separated from the quantitative bin, and the quantitative device further comprises a lifting mechanism, on which the quantitative bin is arranged.

[0010] It also includes an audible and visual prompter, which is electrically connected to the control unit and is arranged at the loading position of the quantitative bin. The audible and visual prompter is provided with a display screen, a signal light and / or a loudspeaker.

[0011] It also includes a car stopper, which is arranged at the loading position of the quantitative bin.

[0012] It also includes a quantitative bin protection mechanism, which is arranged at the upper loading position of the quantitative bin, and the upper surface of the quantitative bin protection mechanism is higher than the upper surface of the quantitative bin, so as to protect the quantitative bin from external interference.

[0013] The lower part of the loading gate, the lower part of the unloading gate and / or the discharge end of the conveying device are provided with a dust prevention device.

[0014] The discharge end of the conveying device is provided with an unloading chute, and the lower part of the unloading chute is provided with an anti-spill device. The anti-spill device includes a baffle plate and a driving member. The baffle plate and the unloading chute are hinged, and the driving member is arranged on the outside of the baffle plate. The driving member can adjust the baffle angle of the baffle plate.

[0015] The discharge gate includes a jaw gate, a fan gate or a flat gate.

[0016] The conveying device includes a belt conveyor, a scraper conveyor, a screw conveyor and / or a bucket conveyor.

[0017] The transport equipment includes a belt conveyor, a scraper conveyor, a screw conveyor, a bucket conveyor or a transport vehicle.

[0018] A bulk material quantitative loading method based on a bulk material quantitative loading system, wherein the quantitative loading steps are as follows:

[0019] Step 1: Input the required load M0 into the control unit;

[0020] Step 2: Use the loading equipment to load the bulk material into the quantitative bin, and the control unit and the weighing sensor cooperate to measure the heavy load weight S0 of the quantitative bin and store the data S0;

[0021] Step 3: The unloading gate of the quantitative bin is opened, and the material is unloaded to the receiving end of the conveying device. The conveying device conveys the material from the receiving end to the discharging end, and the material is loaded into the transportation equipment of the next process;

[0022] Step 4: During the unloading process of the quantitative bin, the control unit and the weighing sensor cooperate to detect the weight St of the quantitative bin in real time, and calculate the result of S0-St to Mt. The control unit compares Mt with M0. When M0-Mt≤J, the unloading gate is controlled to close and the unloading is stopped; when M0-Mt>J, the quantitative bin continues to unload, and J is the final buffer remaining amount of loading;

[0023] Step 5: After the quantitative bin is unloaded, the control unit controls the unloading gate to close;

[0024] Step 6: Repeat steps 2 to 5 until M0-Mt≤J, the single quantitative loading is completed, and Mt is cleared;

[0025] Step 7: Repeat steps 1 to 6 to carry out the next quantitative loading.

[0026] Preferably, the step 4 further comprises the following steps:

[0027] Step 4.1: When the loading coefficient K = Mt / M0 ≤ 0.8, the unloading gate of the quantitative bin is fully opened;

[0028] Step 4.2: When the loading coefficient K = Mt / M0>0.8, the relationship between the unloading gate opening P of the quantitative bin and the loading coefficient K is: P = 5×(1-K).

[0029] Preferably, the step 2 specifically includes the following steps:

[0030] Step 2.1: The lifting mechanism raises the quantitative bin so that the upper end of the quantitative bin is close to the loading gate to reduce dust escape during loading;

[0031] Step 2.2: The loading gate is opened, and the loading equipment loads the bulk material into the quantitative bin;

[0032] Step 2.3: After the quantitative bin is filled, the loading gate is closed;

[0033] Step 2.4: The lifting mechanism drops the quantitative bin, so that the material in the quantitative bin is separated from the loading gate, to prevent the loading gate from squeezing the material in the quantitative bin and causing weighing interference;

[0034] Step 2.5: The control unit and the weighing sensor cooperate to measure the heavy load weight S0 of the quantitative bin and store the data S0.

[0035] The beneficial effects of the present invention are:

[0036] 1. The quantitative bin is used for static weighing loading, which has high loading accuracy and good stability.

[0037] 2. A quantitative bin protection mechanism is provided to protect the quantitative bin from external interference.

[0038] 3. Multiple quantitative bins can be set up for alternate loading, quantitative and unloading, with high loading efficiency.

[0039] 4. Setting up a lifting mechanism can not only reduce dust emission during loading, but also avoid the loading gate squeezing the material in the quantitative bin and causing weighing interference.

[0040] 5. A dust prevention device is installed at the lower part of the loading gate, the lower part of the unloading gate and / or the discharge end of the conveying device to reduce the dust generated by material transfer.

[0041] 6. An anti-spill device is installed at the bottom of the unloading chute to prevent material from spilling during transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of the main structure of a bulk material quantitative loading system in Example 1;

[0043] Figure 2 It is a left-side structural schematic diagram of a bulk material quantitative loading system in Example 1;

[0044] Figure 3 is a schematic structural diagram of the unloading chute in Example 1;

[0045] Figure 4 is a schematic diagram of the main structure of a bulk material quantitative loading system in Example 2;

[0046] Figure 5 is a left-side structural schematic diagram of a bulk material quantitative loading system in Example 2;

[0047] Figure 6 is a schematic structural diagram of the discharge end of the conveying device in Example 2;

[0048] Figure 7 is a structural schematic diagram of a bulk material quantitative loading system in Example 3;

[0049] Figure 8 It is a structural schematic diagram of a bulk material quantitative loading system in Example 4.

[0050] In the figure: 1. dosing device; 2. conveying device; 3. control unit; 4. dosing bin; 5. weighing sensor; 6. unloading gate; 6.1. jaw gate; 6.2. flat gate; 7. transportation equipment; 8. dosing bin protection mechanism; 9. dust prevention device; 10. unloading chute; 11. anti-spill device; 11.1. material baffle plate; 11.2. driving part; 12. belt conveyor; 13. scraper conveyor; 14. screw conveyor; 15. bucket conveyor; 16. loading gate; 17. lifting mechanism; 18. sound and light prompter; 19. car stopper. DETAILED DESCRIPTION

[0051] The technical solutions in the present invention are described clearly and completely below in combination with the embodiments and drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Example 1

[0053] like Figures 1 to 3 As shown, a bulk material quantitative loading system includes a quantitative device 1, a conveying device 2 and a control unit 3. The quantitative device 1 includes a quantitative bin 4 and a weighing sensor 5. The weighing sensor 5 is arranged between the quantitative bin 4 and a foundation. The weighing sensor 5 carries the quantitative bin 4. The weighing sensor 5 is electrically connected to the control unit 3. The control unit 3 and the weighing sensor 5 cooperate to measure the weight of the quantitative bin 4. A discharge gate 6 is provided at the lower part of the quantitative bin 4. The receiving end of the conveying device 2 is arranged at the lower part of the discharge gate 6. The unloading height of the discharge end of the conveying device 2 is higher than the height of the receiving end of the next process transportation equipment 7.

[0054] Preferably, the quantitative device 1 comprises at least two quantitative bins 4, and the multiple quantitative bins 4 can be alternately loaded, quantitatively measured, and unloaded to improve the quantitative loading efficiency.

[0055] Preferably, each quantitative bin 4 includes at least two unloading gates 6 to improve unloading efficiency and increase space utilization of the quantitative bin 4 .

[0056] Preferably, the bulk material quantitative loading system also includes a quantitative bin protection mechanism 8, which is arranged at the upper loading position of the quantitative bin 4. The top of the quantitative bin protection mechanism 8 is higher than the top of the quantitative bin 4 to protect the quantitative bin 4 from external interference.

[0057] Preferably, a dust prevention device 9 is provided at the lower part of the discharge gate 6 and / or the discharge end of the conveying device 2 .

[0058] Preferably, the discharge end of the conveying device 2 is provided with an unloading chute 10, and the lower part of the unloading chute 10 is provided with an anti-spill device 11, and the anti-spill device 11 includes a baffle plate 11.1 and a driving member 11.2. The baffle plate 11.1 and the unloading chute 10 are hinged, and the driving member 11.2 is arranged on the outside of the baffle plate 11.1. The driving member 11.2 can adjust the baffle angle of the baffle plate 11.1.

[0059] The discharge gate 6 is a jaw gate 6.1, and can also be a fan gate or a flat gate.

[0060] The conveying device 2 is a belt conveyor 12, and may also be a scraper conveyor, a screw conveyor and / or a bucket conveyor.

[0061] The transport equipment 7 includes a transport vehicle, a belt conveyor, a scraper conveyor, a screw conveyor or a bucket conveyor, etc.

[0062] A bulk material quantitative loading method based on a bulk material quantitative loading system, wherein the quantitative loading steps are as follows:

[0063] Step 1: Input the required load M0 into the control unit 3;

[0064] Step 2: Use the loading equipment to load the bulk material into the quantitative bin 4, the control unit 3 and the weighing sensor 5 cooperate to measure the heavy load weight S0 of the quantitative bin 4, and store the data S0;

[0065] Step 3: The unloading gate 6 of the quantitative bin 4 is opened to unload the material to the receiving end of the conveying device 2. The conveying device 2 conveys the material from the receiving end to the discharging end and loads the material into the next process transportation equipment 7;

[0066] Step 4: During the unloading process of the quantitative bin 4, the control unit 3 and the weighing sensor 5 cooperate to detect the weight St of the quantitative bin 4 in real time, and calculate the result of S0-St and accumulate it to Mt. The control unit 3 compares Mt with M0. When M0-Mt≤J, the unloading gate 6 is controlled to close and the unloading is stopped; when M0-Mt>J, the quantitative bin 4 continues to unload, and J is the final buffer remaining amount of loading;

[0067] Step 5: After the quantitative bin 4 is unloaded, the control unit 3 controls the unloading gate 6 to close;

[0068] Step 6: Repeat steps 2 to 5 until M0-Mt≤J, the single quantitative loading is completed, and Mt is cleared;

[0069] Step 7: Repeat steps 1 to 6 to carry out the next quantitative loading.

[0070] Preferably, the step 4 further comprises the following steps:

[0071] Step 4.1: When the loading coefficient K=Mt / M0≤0.8, the unloading gate 6 of the quantitative bin 4 is fully opened;

[0072] Step 4.2: When the loading coefficient K=Mt / M0>0.8, the relationship between the opening P of the unloading gate 6 of the quantitative bin 4 and the loading coefficient K is: P=5×(1-K).

[0073] Example 2

[0074] like Figures 4 to 6As shown, a bulk material quantitative loading system includes a quantitative device 1, a conveying device 2 and a control unit 3. The quantitative device 1 includes a quantitative bin 4 and a weighing sensor 5. The weighing sensor 5 is arranged between the quantitative bin 4 and a foundation. The weighing sensor 5 carries the quantitative bin 4. The weighing sensor 5 is electrically connected to the control unit 3. The control unit 3 and the weighing sensor 5 cooperate to measure the weight of the quantitative bin 4. A discharge gate 6 is provided at the lower part of the quantitative bin 4. The receiving end of the conveying device 2 is arranged at the lower part of the discharge gate 6. The unloading height of the discharge end of the conveying device 2 is higher than the height of the receiving end of the next process transportation equipment 7.

[0075] Preferably, the quantitative device 1 comprises at least two quantitative bins 4, and the multiple quantitative bins 4 can be alternately loaded, quantitatively measured and unloaded.

[0076] Preferably, the quantitative device 1 further comprises a loading gate 16 , and the loading gate 16 is arranged at the upper opening of the quantitative bin 4 .

[0077] Preferably, the loading gate 16 is separated from the quantitative bin 4 , and the quantitative device 1 further includes a lifting mechanism 17 , and the quantitative bin 4 is disposed on the lifting mechanism 17 .

[0078] Preferably, it also includes an audible and visual indicator 18, which is electrically connected to the control unit 3, and is arranged at the loading position of the quantitative bin 4. The audible and visual indicator 18 is provided with a display screen, a signal light and / or a loudspeaker.

[0079] Preferably, it further comprises a car stopper 19 , which is arranged at the loading position of the quantitative bin 4 .

[0080] Preferably, a dust prevention device 9 is provided at the lower part of the loading gate 16 , the lower part of the unloading gate 6 and / or the discharge end of the conveying device 2 .

[0081] The discharge gate 6 is a flat gate 6.2, and can also be a jaw gate or a fan gate.

[0082] The conveying device 2 is a scraper conveyor 13, and may also be a belt conveyor, a screw conveyor 14 and / or a bucket conveyor.

[0083] The transport equipment 7 includes a belt conveyor, a scraper conveyor, a screw conveyor, a bucket conveyor or a transport vehicle.

[0084] Preferably, step 2 in the embodiment 1 specifically includes the following steps:

[0085] Step 2.1: The lifting mechanism 17 lifts the quantitative bin 4 so that the upper end of the quantitative bin 4 is close to the loading gate 16 to reduce dust escape during transfer;

[0086] Step 2.2: The loading gate 16 is opened, and the loading equipment loads the bulk material into the quantitative bin 4;

[0087] Step 2.3: After the quantitative bin 4 is filled, the loading gate 16 is closed;

[0088] Step 2.4: The lifting mechanism 17 drops the quantitative bin 4, so that the material in the quantitative bin 4 is separated from the loading gate 16, so as to prevent the loading gate 16 from squeezing the material in the quantitative bin 4 and causing weighing interference;

[0089] Step 2.5: The control unit 3 and the weighing sensor 5 cooperate to measure the heavy load weight S0 of the quantitative bin 4 and store the data S0.

[0090] The rest is the same as in Example 1.

[0091] Example 3

[0092] like Figure 7 As shown, a bulk material quantitative loading system includes a quantitative device 1, a conveying device 2 and a control unit 3. The quantitative device 1 includes a quantitative bin 4 and a weighing sensor 5. The weighing sensor 5 is arranged between the quantitative bin 4 and a foundation. The weighing sensor 5 carries the quantitative bin 4. The weighing sensor 5 is electrically connected to the control unit 3. The control unit 3 and the weighing sensor 5 cooperate to measure the weight of the quantitative bin 4. A discharge gate 6 is provided at the lower part of the quantitative bin 4. The receiving end of the conveying device 2 is arranged at the lower part of the discharge gate 6. The unloading height of the discharge end of the conveying device 2 is higher than the height of the receiving end of the next process transportation equipment 7.

[0093] The conveying device 2 is a belt conveyor 12 and a bucket conveyor 15 .

[0094] The transport equipment 7 includes a belt conveyor, a scraper conveyor, a screw conveyor, a bucket conveyor or a transport vehicle.

[0095] The rest is the same as in Example 1.

[0096] Example 4

[0097] like Figure 8 As shown, a bulk material quantitative loading system includes a quantitative device 1, a conveying device 2 and a control unit 3. The quantitative device 1 includes a quantitative bin 4 and a weighing sensor 5. The weighing sensor 5 is arranged between the quantitative bin 4 and a foundation. The weighing sensor 5 carries the quantitative bin 4. The weighing sensor 5 is electrically connected to the control unit 3. The control unit 3 and the weighing sensor 5 cooperate to measure the weight of the quantitative bin 4. A discharge gate 6 is provided at the lower part of the quantitative bin 4. The receiving end of the conveying device 2 is arranged at the lower part of the discharge gate 6. The unloading height of the discharge end of the conveying device 2 is higher than the height of the receiving end of the next process transportation equipment 7.

[0098] The conveying device 2 is a screw conveyor 14 .

[0099] The transport equipment 7 includes a belt conveyor, a scraper conveyor, a screw conveyor, a bucket conveyor or a transport vehicle.

[0100] The rest is the same as in Example 1.

[0101] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A bulk material quantitative loading system, comprising a quantitative device (1), a conveying device (2) and a control unit (3), characterized in that: The quantitative device (1) comprises a quantitative bin (4) and a weighing sensor (5), wherein the weighing sensor (5) is arranged between the quantitative bin (4) and a foundation, the weighing sensor (5) supports the quantitative bin (4), the weighing sensor (5) is electrically connected to a control unit (3), the control unit (3) and the weighing sensor (5) cooperate to measure the weight of the quantitative bin (4), a discharge gate (6) is arranged at the lower part of the quantitative bin (4), a receiving end of the conveying device (2) is arranged at the lower part of the discharge gate (6), and the unloading height of the discharge end of the conveying device (2) is higher than the height of the receiving end of the next process transportation equipment (7).

2. A bulk material quantitative loading system according to claim 1, characterized in that: The quantitative device (1) comprises at least two quantitative bins (4), and the plurality of quantitative bins (4) can be alternately loaded, quantitatively measured and unloaded.

3. A bulk material quantitative loading system according to claim 1 or 2, characterized in that: The quantitative device (1) further comprises a loading gate (16), and the loading gate (16) is arranged at the upper opening of the quantitative bin (4).

4. A bulk material quantitative loading system according to claim 3, characterized in that: The loading gate (16) is separate from the quantitative bin (4), and the quantitative device (1) further comprises a lifting mechanism (17), and the quantitative bin (4) is arranged on the lifting mechanism (17).

5. A bulk material quantitative loading system according to claim 1 or 2, characterized in that: The device also comprises an audible and visual prompter (18), which is electrically connected to the control unit (3), is arranged at the loading position of the quantitative bin (4), and is provided with a display screen, a signal light and / or a loudspeaker.

6. A bulk material quantitative loading system according to claim 1 or 2, characterized in that: It also comprises a car stopper (19), which is arranged at the loading position of the quantitative bin (4).

7. A bulk material quantitative loading system according to claim 1 or 2, characterized in that: The invention also comprises a quantitative bin protection mechanism (8), which is arranged at the upper loading position of the quantitative bin (4), and the upper surface of the quantitative bin protection mechanism (8) is higher than the upper surface of the quantitative bin (4), so as to protect the quantitative bin (4) from external interference.

8. A method for quantitative loading of bulk materials based on a quantitative loading system for bulk materials, using the quantitative loading system for bulk materials according to claim 1, characterized in that: The quantitative loading steps are as follows: Step 1: Input the required load M0 into the control unit (3); Step 2: Use a loading device to load the bulk material into the quantitative bin (4), and the control unit (3) and the weighing sensor (5) cooperate to measure the heavy load weight S0 of the quantitative bin (4), and store the data S0; Step 3: The unloading gate (6) of the quantitative bin (4) is opened to unload the material to the receiving end of the conveying device (2). The conveying device (2) conveys the material from the receiving end to the discharging end, and loads the material into the next process transportation equipment (7); Step 4: During the unloading process of the quantitative bin (4), the control unit (3) and the weighing sensor (5) cooperate to detect the weight St of the quantitative bin (4) in real time, and calculate the result of S0-St and accumulate it to Mt. The control unit (3) compares Mt with M0. When M0-Mt≤J, the unloading gate (6) is controlled to close and the unloading is stopped; when M0-Mt>J, the quantitative bin (4) continues to unload, and J is the final buffer remaining amount of loading; Step 5: After the quantitative bin (4) is unloaded, the control unit (3) controls the unloading gate (6) to close; Step 6: Repeat steps 2 to 5 until M0-Mt≤J, the single quantitative loading is completed, and Mt is cleared; Step 7: Repeat steps 1 to 6 to carry out the next quantitative loading.

9. A bulk material quantitative loading method according to claim 8, characterized in that: The step 4 also includes the following steps: Step 4.1: When the loading coefficient K=Mt / M0≤0.8, the unloading gate (6) of the quantitative bin (4) is fully opened; Step 4.2: When the loading coefficient K=Mt / M0>0.8, the relationship between the opening P of the discharge gate (6) of the quantitative bin (4) and the loading coefficient K is: P=5×(1-K).

10. A bulk material quantitative loading method according to claim 8, characterized in that: The step 2 specifically includes the following steps: Step 2.1: The lifting mechanism (17) lifts the quantitative bin (4) so ​​that the upper end of the quantitative bin (4) is close to the loading gate (16) to reduce dust emission during loading; Step 2.2: The loading gate (16) is opened, and the loading equipment loads the bulk material into the quantitative bin (4); Step 2.3: After the quantitative bin (4) is filled, the loading gate (16) is closed; Step 2.4: The lifting mechanism (17) lowers the quantitative bin (4) so ​​that the material in the quantitative bin (4) is separated from the loading gate (16), thereby preventing the loading gate (16) from squeezing the material in the quantitative bin (4) and causing weighing interference; Step 2.5: The control unit (3) and the weighing sensor (5) cooperate to measure the heavy load weight S0 of the quantitative bin (4) and store the data S0.

Images