Multifunctional separate warehouse coal blending system

Abstract

The utility model discloses a multifunctional separate warehouse coal blending system, and relates to the technical field of material distribution. A first warehouse is provided with a first discharge port, a second discharge port and a third discharge port; the second storage bin is divided into a first sub-storage bin and a second sub-storage bin which are isolated from each other, the first sub-storage bin is used for storing a second type of coal, and the second sub-storage bin and the first storage bin are used for storing a first type of coal; the first sub-storage bin is provided with a fourth discharge port and a fifth discharge port, and the second sub-storage bin is provided with a sixth discharge port; the first conveying device is provided with a feeding hole communicated with the first discharging hole; the second conveying device is provided with a feeding hole communicated with the second discharging hole; the third conveying device is provided with a discharging port, a first feeding port communicated with the third discharging port and a second feeding port communicated with the fourth discharging port. The fourth conveying device is provided with a third feeding port communicated with the fifth discharging port and a fourth feeding port communicated with the sixth discharging port. Coal blending combustion can be carried out on two different types of coal.

Description

TECHNICAL FIELD

[0001] The utility model relates to material distribution technical field, especially a kind of multifunctional warehouse allocation coal system. BACKGROUND

[0002] In the existing coal blending system, usually at least two supply equipment of different categories of coal, such as common high-quality coal bunker and low-quality coal bunker, share a conveying pipeline. When the coal in the two supply equipment converges in the conveying pipeline, due to mutual collision, the coal will bounce around. Once this bouncing occurs at the discharge port of the conveying pipeline, it will occupy the flow-through space of the discharge port, thereby negatively affecting the coal discharge efficiency, causing the coal system to be prone to blockage during conveying, and further interfering with power supply progress.

[0003] During peak regulation operation, high-quality coal bunker and low-quality coal bunker are generally used in cooperation. However, in actual operation, most of the time is spent burning low-quality coal, which causes the low-quality coal bunker to be in a working state continuously, leading to easy wear and tear, frequent need for maintenance, and greatly reduced service life. Although the high-quality coal bunker occupies a bunker position, it is in an idle state for a long time due to its limited working scenario. This condition not only makes the overall coal blending system inefficient, but also greatly increases the workload of the low-quality coal bunker. Although theoretically, high-quality coal and low-quality coal are blended, in terms of actual use effect, it is far from ideal, with extremely low blending efficiency, making it difficult to meet the growing demand for energy efficient use and stable power supply. SUMMARY

[0004] The utility model aims to provide a kind of multifunctional warehouse allocation coal system, to solve the problems existing in the prior art, realize the proportion of two different categories of coal according to the needs of coal blending, create greater economic benefits for thermal power plant.

[0005] To achieve the above object, the utility model provides the following scheme:

[0006] The utility model provides a kind of multifunctional warehouse allocation coal system, comprising:

[0007] The first storage bin is used to store the first category of coal, and the first storage bin is provided with a first discharge port, a second discharge port and a third discharge port;

[0008] The second storage bin is divided into a first sub-storage bin and a second sub-storage bin, which are isolated from each other, the first sub-storage bin is used to store the second category of coal, and the second sub-storage bin is used to store the first category of coal; the first sub-storage bin is provided with a fourth discharge port and a fifth discharge port, and the second sub-storage bin is provided with a sixth discharge port;

[0009] The first conveying device is provided with a discharge port and a feeding port in communication with the first discharge port;

[0010] The second conveying device is provided with a discharge port and a feeding port in communication with the second discharge port;

[0011] The third conveying device is provided with a discharge port, a first feeding port in communication with the third discharge port and a second feeding port in communication with the fourth discharge port;

[0012] The fourth conveying device is provided with a discharge port, a third feeding port in communication with the fifth discharge port and a fourth feeding port in communication with the sixth discharge port.

[0013] Preferably, the third discharge port and the fifth discharge port are respectively provided with a control valve for controlling the discharge amount.

[0014] Preferably, the first storage bin is provided with a first discharge hopper corresponding to the first discharge port, a second discharge hopper corresponding to the second discharge port and a third discharge hopper corresponding to the third discharge port, the first discharge port is located at the outlet end of the first discharge hopper, the second discharge port is located at the outlet end of the second discharge hopper and the third discharge port is located at the outlet end of the third discharge hopper.

[0015] The first sub-storage bin is provided with a fourth discharge hopper corresponding to the fourth discharge port and a fifth discharge hopper corresponding to the fifth discharge port, and the second sub-storage bin is provided with a sixth discharge hopper corresponding to the sixth discharge port, the fourth discharge port is located at the outlet end of the fourth discharge hopper, the fifth discharge port is located at the outlet end of the fifth discharge hopper and the sixth discharge port is located at the outlet end of the sixth discharge hopper.

[0016] Preferably, the first discharge hopper, the second discharge hopper, the third discharge hopper, the fourth discharge hopper, the fifth discharge hopper and the sixth discharge hopper are all inverted conical.

[0017] Preferably, the multifunctional warehouse-coal distribution system further comprises a fifth conveying device and a sixth conveying device.

[0018] The feeding port of the fifth conveying device is in communication with the third discharge port, and the discharge port is in communication with the first feeding port;

[0019] The feeding port of the sixth conveying device is in communication with the fifth discharge port, and the discharge port is in communication with the third feeding port.

[0020] Preferably, the discharge port of the fifth conveying device and the discharge port of the sixth conveying device are respectively provided with a control valve for controlling the discharge amount.

[0021] Preferably, the first conveying device, the second conveying device, the third conveying device, the fourth conveying device, the fifth conveying device and the sixth conveying device all adopt a belt coal feeder, and the belt coal feeder comprises:

[0022] A conveying pipeline;

[0023] A conveying belt arranged inside the conveying pipeline, and the conveying direction of the conveying belt is parallel to the conveying pipeline;

[0024] A driving device, and a driving end of the driving device is in transmission connection with a driving roller at the end of the conveying belt.

[0025] Preferably, the fifth conveying device is arranged above the third conveying device and below the third discharge port, and the sixth conveying device is arranged above the fourth conveying device and below the fifth discharge port.

[0026] Preferably, the first feeding port and the second feeding port are located on the upper side of the third conveying device, and the discharge port of the third conveying device is located on the lower side of the third conveying device.

[0027] The third feeding port and the fourth feeding port are located on the upper side of the fourth conveying device, and the discharge port of the fourth conveying device is located on the lower side of the fourth conveying device.

[0028] Preferably, a partition plate is arranged in the second storage bin, and the first sub-storage bin and the second sub-storage bin are separated by the partition plate.

[0029] Compared with the prior art, the multifunctional warehouse-divided coal blending system has the following technical effects:

[0030] The third conveying device and the fourth conveying device in the multifunctional warehouse-divided coal blending system can simultaneously enter the first type of coal and the second type of coal, and can flexibly blend and burn the first type of coal and the second type of coal according to actual needs and specific proportions, thereby effectively improving the accuracy of coal blending and better meeting the combustion needs of the thermal power plant under different working conditions, providing strong support for improving power generation efficiency and optimizing combustion effect, and further creating greater economic benefits.

[0031] Further, the discharge ports of the various storage bins in the multifunctional warehouse-divided coal blending system are respectively connected to independent conveying devices, compared with the traditional common conveying pipeline, the system can effectively reduce the collision and bouncing of the material in the discharge port and the conveying process, greatly reduce the risk of blockage of the conveying pipeline, ensure the stable operation of the coal blending system, reduce the power interruption or instability caused by blockage, and improve the reliability of the entire power supply system.

[0032] Further, the second storage bin is divided into a first sub-storage bin and a second sub-storage bin which are isolated from each other and store different types of coal respectively, and the reasonable layout of the discharge outlets of the storage bins and the conveying devices enables each storage bin to be effectively utilized during operation such as peak regulation, thereby avoiding the problem that in a conventional system, high-quality coal bins are idle while low-quality coal bins are excessively worn, effectively balancing the workloads of the storage bins, prolonging the service life of the storage bins, reducing the maintenance cost and maintenance frequency of the equipment, and improving the work efficiency and stability of the entire coal blending system.

[0033] Further, control valves are arranged at the third discharge outlet, the fifth discharge outlet, and the discharge outlets of the fifth conveying device and the sixth conveying device, so as to accurately control the discharge amount of each discharge outlet and facilitate real-time adjustment according to different coal blending ratio requirements and actual operating conditions, thereby further improving the flexibility and controllability of the coal blending system and ensuring the efficiency and accuracy of the coal blending process.

[0034] Further, each discharge hopper is designed in an inverted conical shape, which is beneficial to the smooth discharge of the material, reduces the residue and accumulation of the material in the discharge hopper, improves the discharge efficiency of the material, and reduces the risk of poor discharge or blockage caused by material residue, thereby providing good discharge guarantee for the stable operation of the entire coal blending system.

[0035] Further, since most operating conditions of a thermal power plant require only low-quality coal to be fed, and high-quality coal needs to be added for mixed combustion only when peak regulation is required, the multifunctional sub-bin coal blending system of the present application can simultaneously burn low-quality coal to ensure daily supply, and although the high-quality coal bin (i.e., the first sub-storage bin) does not work, the high-quality coal bin does not additionally occupy the inlet of the coal mill. Unlike the conventional high-quality and low-quality sub-bins, when low-quality coal is burned, the high-quality coal bin and its inlet are in a stopped state, while the present application can not only adjust the ratio of high-quality and low-quality coal, but also does not increase the work load of the low-quality coal bin due to the non-burning of high-quality coal, and the inlet of the coal mill below the high-quality coal bin can also burn low-quality coal. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0037] Figure 1 FIG. 1 is a structural schematic view of a multifunctional sub-bin coal blending system of the present application;

[0038] In the figure: 1, first storage bin; 2, first discharge hopper; 3, second discharge hopper; 4, third discharge hopper; 5, first sub-storage bin; 6, partition; 7, second sub-storage bin; 8, fourth discharge hopper; 9, fifth discharge hopper; 10, sixth discharge hopper; 11, first conveying device; 12, second conveying device; 13, third conveying device; 14, fourth conveying device; 15, fifth conveying device; 16, sixth conveying device; 17, control valve. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0040] The utility model discloses a kind of multi-functional warehouse coal blending systems, to solve the problems existing in the prior art described above, realize the coal of two different categories according to the proportion needed is blended and burned, create greater economic benefits for thermal power plant.

[0041] To make the above-mentioned purposes, features and advantages of the utility model more apparent and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0042] As Figure 1 Indicated, the embodiment provides a kind of multi-functional warehouse coal blending systems, comprising:

[0043] First storage bin 1, first storage bin 1 is used to store the coal of first category, first storage bin 1 is provided with first discharge port, second discharge port and third discharge port;

[0044] Second storage bin, second storage bin is divided into mutually isolated first sub-storage bin 5 and second sub-storage bin 7, first sub-storage bin 5 is used to store the coal of second category, and second sub-storage bin 7 is used to store the coal of first category;First sub-storage bin 5 is provided with fourth discharge port and fifth discharge port, and second sub-storage bin 7 is provided with sixth discharge port;

[0045] First conveying device 11, first conveying device 11 is provided with discharge port and the feed inlet that is communicated with first discharge port;

[0046] Second conveying device 12, second conveying device 12 is provided with discharge port and the feed inlet that is communicated with second discharge port;

[0047] Third conveying device 13, first feed inlet that is communicated with third discharge port and second feed inlet that is communicated with fourth discharge port are provided with discharge port on third conveying device 13;

[0048] A fourth conveying device 14 is provided with a discharge port, a third inlet port communicated with the fifth discharge port, and a fourth inlet port communicated with the sixth discharge port.

[0049] It should be noted that in the embodiment, the first category of coal is low-quality coal, and the second category of coal is high-quality coal, i.e., the quality of the second category of coal is better than that of the first category of coal.

[0050] The first conveying device 11 and the second conveying device 12 in the multifunctional warehouse-divided coal blending system can only enter low-quality coal, while the third conveying device 13 and the fourth conveying device 14 can simultaneously enter the first category of coal and the second category of coal, enter only the first category of coal, or enter only the second category of coal. The third conveying device 13 and the fourth conveying device 14 can flexibly blend and burn the first category of coal and the second category of coal according to specific proportions as required, effectively improving the precision of coal blending, and thus better meeting the burning requirements of the thermal power plant under different working conditions, providing strong support for improving the power generation efficiency and optimizing the burning effect, and further creating greater economic benefits.

[0051] Since most working conditions of the thermal power plant require only low-quality coal, and high-quality coal needs to be added for mixed burning only when peak regulation is required, the multifunctional warehouse-divided coal blending system can simultaneously burn low-quality coal to ensure daily supply. Although the high-quality coal warehouse (i.e., the first sub-warehouse 5) does not work, the high-quality coal warehouse does not additionally occupy the inlet of the coal mill. Unlike the traditional high-quality and low-quality warehouse cooperation, when low-quality coal is burned traditionally, the high-quality coal warehouse and its inlet are in a stopped state. However, the multifunctional warehouse-divided coal blending system can not only adjust the blending ratio of high-quality and low-quality coal, but also does not increase the working load of the low-quality coal warehouse due to not burning high-quality coal. The inlet of the coal mill below the high-quality coal warehouse can also burn low-quality coal.

[0052] In the embodiment, the third discharge port and the fifth discharge port are respectively provided with control valves 17 for controlling the discharge amount.

[0053] The discharge settings of the first warehouse 1 and the second warehouse are as follows:

[0054] The first warehouse 1 is provided with a first discharge hopper 2 corresponding to the first discharge port, a second discharge hopper 3 corresponding to the second discharge port, and a third discharge hopper 4 corresponding to the third discharge port. The first discharge port is located at the outlet end of the first discharge hopper 2, the second discharge port is located at the outlet end of the second discharge hopper 3, and the third discharge port is located at the outlet end of the third discharge hopper 4.

[0055] The first sub-storage bin 5 is provided with a fourth discharge hopper 8 corresponding to the fourth discharge port and a fifth discharge hopper 9 corresponding to the fifth discharge port; the second sub-storage bin 7 is provided with a sixth discharge hopper 10 corresponding to the sixth discharge port, the fourth discharge port is located at the outlet end of the fourth discharge hopper 8, the fifth discharge port is located at the outlet end of the fifth discharge hopper 9, and the sixth discharge port is located at the outlet end of the sixth discharge hopper 10.

[0056] The first discharge hopper 2, the second discharge hopper 3, the third discharge hopper 4, the fourth discharge hopper 8, the fifth discharge hopper 9 and the sixth discharge hopper 10 are all inverted conical; the inverted conical design of each discharge hopper is beneficial to the smooth discharge of the material, reduces the residue and accumulation of the material in the discharge hopper, improves the discharge efficiency of the material, reduces the risk of poor discharge or blockage caused by material residue, and provides good discharge guarantee for the stable operation of the entire coal blending system.

[0057] In the optional scheme of the embodiment, preferably, the multifunctional sub-bin coal blending system further comprises a fifth conveying device 15 and a sixth conveying device 16;

[0058] The inlet of the fifth conveying device 15 is in communication with the third discharge port, and the outlet is in communication with the first inlet;

[0059] The inlet of the sixth conveying device 16 is in communication with the fifth discharge port, and the outlet is in communication with the third inlet.

[0060] In the optional scheme of the embodiment, preferably, control valves 17 for controlling the discharge amount are respectively arranged at the outlets of the fifth conveying device 15 and the sixth conveying device 16. The control valves 17 are respectively arranged at the third discharge port, the fifth discharge port, and the outlets of the fifth conveying device 15 and the sixth conveying device 16, so as to accurately control the discharge amount of each discharge port, facilitate real-time adjustment according to different coal blending ratio requirements and actual operation conditions, further improve the flexibility and controllability of the coal blending system, and ensure the efficiency and accuracy of the coal blending process.

[0061] In addition, the fifth conveying device 15 is arranged above the third conveying device 13 and below the third discharge port; and the sixth conveying device 16 is arranged above the fourth conveying device 14 and below the fifth discharge port.

[0062] In the embodiment, the first conveying device 11, the second conveying device 12, the third conveying device 13, the fourth conveying device 14, the fifth conveying device 15 and the sixth conveying device 16 all adopt belt type coal feeders, specifically, the belt type coal feeder comprises:

[0063] A conveying pipeline;

[0064] A conveying belt, which is arranged inside the conveying pipeline and has a conveying direction parallel to the conveying pipeline;

[0065] The driving device is in transmission connection with the driving roller of the end of the conveying belt.

[0066] It should be noted that the belt coal feeder is a commercially available product well known in the art, and therefore the detailed structure and working principle of the belt coal feeder will not be described in this embodiment.

[0067] In the optional scheme of the embodiment, preferably, the second storage bin is provided with a partition plate 6, and the first sub-storage bin 5 and the second sub-storage bin 7 are separated by the partition plate 6. The partition plate 6 can ensure that the two different types of coal in the second storage bin (the first type of coal is stored in the second sub-storage bin 7, and the second type of coal is stored in the first sub-storage bin 5) are completely isolated and stored. This avoids the mixing of different types of coal during storage, ensures the purity of each type of coal, and provides a basic condition for subsequent accurate coal blending.

[0068] The principle and implementation mode of the present application are described by applying specific examples in the present application, and the above embodiment is only used to help understand the method and core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In view of the above, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A multi-functional binning coal blending system, characterized in that, The utility model relates to a kind of multi-functional warehouse coal distribution system, including: First warehouse, the first warehouse is used to store the coal of first category, the first warehouse is provided with first discharge port, second discharge port and third discharge port; Second warehouse, the second warehouse is divided into mutually isolated first sub-warehouse and second sub-warehouse, the first sub-warehouse is used to store the coal of second category, the second sub-warehouse is used to store the coal of first category;The first sub-warehouse is provided with fourth discharge port and fifth discharge port, and the second sub-warehouse is provided with sixth discharge port; First conveying device, the first conveying device is provided with discharge port and feed port communicated with the first discharge port; Second conveying device, the second conveying device is provided with discharge port and feed port communicated with the second discharge port; Third conveying device, the third conveying device is provided with discharge port, first feed port communicated with the third discharge port and second feed port communicated with the fourth discharge port; Fourth conveying device, the fourth conveying device is provided with discharge port, third feed port communicated with the fifth discharge port and fourth feed port communicated with the sixth discharge port.

2. The multi-functional coal bin coal blending system according to claim 1, characterized in that: Control valve for controlling the amount of discharge is respectively arranged at the third discharge port and the fifth discharge port.

3. The multi-functional coal bin coal blending system according to claim 1, characterized in that: The first warehouse is provided with first discharge hopper corresponding to the first discharge port, second discharge hopper corresponding to the second discharge port and third discharge hopper corresponding to the third discharge port, and the first discharge port is located at the outlet end of the first discharge hopper, the second discharge port is located at the outlet end of the second discharge hopper, and the third discharge port is located at the outlet end of the third discharge hopper. The first sub-warehouse is provided with fourth discharge hopper corresponding to the fourth discharge port and fifth discharge hopper corresponding to the fifth discharge port, and the second sub-warehouse is provided with sixth discharge hopper corresponding to the sixth discharge port, and the fourth discharge port is located at the outlet end of the fourth discharge hopper, the fifth discharge port is located at the outlet end of the fifth discharge hopper, and the sixth discharge port is located at the outlet end of the sixth discharge hopper.

4. The multi-functional binning coal blending system according to claim 3, characterized in that: The first discharge hopper, the second discharge hopper, the third discharge hopper, the fourth discharge hopper, the fifth discharge hopper and the sixth discharge hopper are all inverted cone-shaped.

5. The multi-functional coal blending system according to claim 1, wherein: The multi-functional warehouse coal distribution system further includes fifth conveying device and sixth conveying device. The feed port of the fifth conveying device is communicated with the third discharge port, and the discharge port is communicated with the first feed port. The feed port of the sixth conveying device is communicated with the fifth discharge port, and the discharge port is communicated with the third feed port.

6. The multi-functional binning coal blending system according to claim 5, characterized in that: Control valve for controlling the amount of discharge is respectively arranged at the discharge port of the fifth conveying device and the discharge port of the sixth conveying device.

7. The multi-functional coal bin coal blending system according to claim 5, characterized in that: The first conveying device, the second conveying device, the third conveying device, the fourth conveying device, the fifth conveying device and the sixth conveying device all adopt belt coal feeder, and the belt coal feeder includes: Conveying pipeline; Conveying belt, the conveying belt is arranged inside the conveying pipeline, and the conveying direction of the conveying belt is parallel to the conveying pipeline; Driving device, the driving end of the driving device is drivingly connected with the driving roller at the end of the conveying belt.

8. The multi-functional coal blending system according to claim 5, wherein: The fifth conveying device is arranged above the third conveying device and below the third discharge port; and the sixth conveying device is arranged above the fourth conveying device and below the fifth discharge port.

9. The multi-functional coal blending system of claim 1, wherein: The first feeding port and the second feeding port are located on the upper side of the third conveying device, and the discharge port of the third conveying device is located on the lower side of the third conveying device. The third feeding port and the fourth feeding port are located on the upper side of the fourth conveying device, and the discharge port of the fourth conveying device is located on the lower side of the fourth conveying device.

10. The multi-functional coal blending system of claim 1, wherein: The second storage bin is provided with a partition plate, and the first sub-storage bin and the second sub-storage bin are separated by the partition plate.

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