Dividing chute and building type crushing and filling system
By designing a diversion chute and a floor-type crushing and filling system, combined with the design of automatic material separation and independent installation platform, the existing gangue treatment device has large land area and high maintenance costs, and the effects of uniform material separation, equipment integration and energy saving and consumption reduction are achieved.
Patent Information
- Application Number
- CN202422048181.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-05-10
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing gangue treatment equipment covers a large area, has high construction cost, high maintenance cost, and is complex in equipment connection, making it difficult to expand; the material separation is uneven during crushing and screening, inaccurate metrology and detection, and difficult flow regulation.
A diverting chute and floor-type crushing and filling system is designed. By setting up diverting chutes to match multiple conveying devices, double-layer valves are used to control the outlet pipeline, and automatic material separation is achieved by combining the weighing device; the crushing and screening devices are set on an independent installation platform, and materials are conveyed using lifting devices to achieve high equipment integration and energy saving and consumption reduction.
It realizes uniformity and automated control of material separation, reduces the equipment's footprint and operating costs, extends the equipment's service life, and increases the yield of gangue crushing and the proportion of powder.
Smart Images
Figure CN222949916U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a diverter chute and a tower-type crushing and filling system, in particular to a diverter chute and a tower-type crushing and filling system adopting a slurry filling process, and belongs to the technical field of manufacturing waste rock filling equipment. Background Art
[0002] With the continuous mining of coal, the demand for gangue filling treatment in my country has increased year by year. Currently, gangue filling is often carried out in the form of slurry filling.
[0003] In the prior art, the gangue treatment device is constructed by flat ground infrastructure. After the gangue is crushed to a certain particle size, it is mixed with mixed additives (such as water, fly ash, cement, etc.), and then transported to the underground filling area (goaf, collapse area, separation area, accident pool, etc.). However, the flat ground infrastructure occupies a large ground area, has high construction costs, and high maintenance and operation costs, which has become a major pain point in the industry.
[0004] In addition to the above, there are also waste rock processing devices constructed in the form of multiple towers. However, most of the buildings are reinforced concrete structures, which are complex to build and occupy a large area. There are many material conveying equipment connections between the crushing and screening equipment inside the building and between different buildings. The spatial layout is highly complex, which reduces the maintenance convenience of the equipment and increases the cost of maintenance. For areas with a small footprint, if you want to expand the filling system, you will not be able to carry out filling operations due to the footprint.
[0005] In addition, in the crushing and screening process, it is inevitable that one device will transport materials to multiple devices. At this time, it is usually chosen to distribute the materials on the belt. This method often has problems such as uneven material distribution, inaccurate metering and detection, and difficulty in flow regulation. Summary of the invention
[0006] The technical problem to be solved by the utility model is to provide a diversion chute and a building-type crushing and filling system in view of the deficiencies of the existing technology. By setting up a diversion chute, a variety of conveying devices can be matched. The outlet pipeline is controlled by a double-layer valve, which is more precise and the pipeline is cut off and opened more thoroughly. In combination with a weighing device, automatic material distribution can be realized without manual intervention to ensure uniform material distribution. By setting up a variety of equipment in the steel structure building and using a lifting device to transport materials, the equipment is highly integrated and occupies a smaller area, and the infrastructure and operating costs are lower. By setting the crushing device and the screening device on an independent installation platform, it can be avoided that the crushing device and the screening device cause the steel structure to vibrate, and the impact of vibration on other equipment on the steel structure building can be avoided. At the same time, the load on the steel structure building is reduced, and the service life of the building-type crushing and filling system is extended. The process route of two-stage crushing and more screening and less breaking is adopted to achieve energy saving and consumption reduction of the crushing device and the screening device, increase the material cost advantage, and improve the finished product rate of gangue crushing and the proportion of powder.
[0007] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0008] The utility model provides a diversion chute, which is used for material diversion in a material conveying process in a building-type crushing and filling system. The diversion chute comprises a feed inlet and a plurality of outlet pipelines, and a stop valve and a variable valve are installed on each of the outlet pipelines.
[0009] In order to ensure smooth material discharge, the angle between the outlet pipe and the ground is not less than 60 degrees.
[0010] Preferably, the number of the outlet pipelines is two, and the outlets of the two outlet pipelines are symmetrically distributed on both sides of the feed inlet.
[0011] In order to close the outlet pipeline more thoroughly, the variable valve is located above the stop valve.
[0012] In order to realize automatic control of material distribution, the diversion chute also includes a weighing device arranged downstream of the diversion chute, and the weighing device is used to detect the weight of the material flowing out of each outlet pipeline after material distribution.
[0013] The utility model also provides a building type crushing and filling system, which includes a steel structure building, in which a crushing device, a screening device, a finished product bin and a filling device are arranged; the crushing device and the screening device are respectively arranged on their own independent installation platforms.
[0014] In order to prevent the primary crushing device, the secondary crushing device, the screening device and other equipment from causing the steel structure to vibrate, to avoid the impact of vibration on other equipment on the steel structure, and to reduce the load on the steel structure, the independent installation platform includes a mounting plane and a support frame, and the independent installation platform is installed on the ground.
[0015] In order to match a variety of working environments, filter out impurities and large particles and remove iron materials in materials such as coal gangue, the feeding system of the building-type crushing and filling system includes a feeding belt conveyor, a feeder, a filtering and impurity removal device and an iron remover. The filtering and impurity removal device is arranged above the feeder, and the iron remover is arranged above the feeding belt conveyor.
[0016] In order to realize maintenance without stopping work and meet the requirements of continuous operation, the crushing device includes a primary crushing device and two secondary crushing devices, the number of the screening devices is two, and the number of the filling devices is two.
[0017] In order to allow the crushed materials to enter different screening devices, a first belt conveyor is arranged below the discharge port of the primary crushing device, and the discharge port of the primary crushing device is connected to the feed port of the first belt conveyor; the discharge port of the first belt conveyor is connected to the feed ports of two semi-finished product lifting devices through a diversion chute, and the two semi-finished product lifting devices are symmetrically distributed on both sides of the first belt conveyor and the feed ports of the two semi-finished product lifting devices are facing the first belt conveyor; second belt conveyors are arranged below the discharge ports of the two semi-finished product lifting devices, and the discharge ports of the semi-finished product lifting devices are connected to the feed port of the second belt conveyor; the discharge ports of the two second belt conveyors are connected to the feed ports of the two screening devices through a chute, and the feed ports of the two screening devices are located directly below the discharge port of the chute. More specifically, the diversion chute includes a feed port and multiple outlet pipelines, and a stop valve and a variable valve are installed on each of the outlet pipelines.
[0018] In order to allow the crushed materials to enter different secondary crushing devices, the material discharge ports of the two screening devices on the screen are connected to the material feed ports of the two secondary crushing devices through chutes respectively, and the material feed ports of the two secondary crushing devices are located directly below the material discharge ports of the two screening devices on the screen; a fourth belt conveyor is arranged directly below the material discharge ports of the two screening devices under the screen, and the material discharge ports of the two screening devices under the screen are connected to the material feed port of the fourth belt conveyor.
[0019] In order to allow the material crushed by the secondary crushing device to enter the screening device again, the discharge ports of the two secondary crushing devices are respectively connected to the feed ports of the two third belt conveyors, and the feed ports of the two third belt conveyors are respectively located directly below the discharge ports of the two secondary crushing devices; the discharge ports of the two third belt conveyors are connected to the feed port of the first belt conveyor.
[0020] In order to utilize the space more rationally, the two screening devices, the two second belt conveyors and the two secondary crushing devices are symmetrically distributed on both sides of the first belt conveyor.
[0021] In order to transport materials to the finished product warehouse, the discharge port of the fourth belt conveyor is connected to the feed port of the finished product lifting device through a chute, the finished product lifting device is located on the side of the screening device, the discharge port of the finished product lifting device is connected to the feed port of the fifth belt conveyor, the discharge port of the fifth belt conveyor is connected to the feed port of the bidirectional belt conveyor, and the discharge ports at both ends of the bidirectional belt conveyor are respectively connected to the feed port of the finished product warehouse through diversion devices.
[0022] In order to avoid uneven distribution of materials in the bin and affect the mixing effect, the diversion device includes an inlet and multiple diversion pipelines. The multiple diversion pipelines are respectively inserted into the finished product bin, and the part of the diversion pipeline inserted into the finished product bin is provided with multiple discharge holes.
[0023] In order to transport materials to the filling device, a weighing belt conveyor for bidirectional material transportation is arranged directly below the discharge port of the finished product warehouse, and the discharge ports at both ends of the weighing belt conveyor are respectively connected to the feed ports of the two filling devices; the filling device includes a mixing device and a pumping device.
[0024] In order to reduce dust pollution and improve material utilization, the building-type crushing and filling system also includes a dust removal device, which includes a screw conveyor, a discharge valve, a dust collection pipeline, a dust collector and a dust removal fan. The dust removal fan is connected to the air outlet of the dust collector, one end of the dust collection pipeline is connected to the air inlet of the dust collector, and the other end is connected to the dust collection point.
[0025] In order to prevent uneven powder content of materials in the finished product warehouse, the discharge port of the screw conveyor is connected to the feed port of the fourth belt conveyor.
[0026] In summary, the utility model can match a variety of conveying devices by setting a diversion chute, and the outlet pipeline is controlled by a double-layer valve, which is more precise and the pipeline is cut off and opened more thoroughly; combined with a weighing device, it can also realize automatic material distribution without manual intervention to ensure uniform material distribution. By setting a variety of equipment in the steel structure building and using a lifting device to transport materials, the equipment is highly integrated and occupies a smaller area, and the infrastructure and operating costs are lower; by setting the crushing device and the screening device on an independent installation platform, it can be avoided that they cause the steel structure building to vibrate, and the impact of vibration on other equipment on the steel structure building can be avoided. At the same time, the load on the steel structure building is reduced, and the service life of the building type crushing and filling system is extended; the process route of two-stage crushing and more screening and less breaking is adopted to achieve energy saving and consumption reduction of the crushing device and the screening device, increase the material cost advantage, and improve the finished product rate of gangue crushing and the proportion of powder.
[0027] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a structural diagram of the building-type crushing and filling system of the utility model;
[0029] Figure 2 It is a main schematic diagram of the building-type crushing and filling system of the utility model;
[0030] Figure 3 It is a top view schematic diagram of the building type crushing and filling system of the utility model;
[0031] Figure 4 It is a left side schematic diagram of the building type crushing and filling system of the utility model;
[0032] Figure 5 It is a right side schematic diagram of the building type crushing and filling system of the utility model;
[0033] Figure 6 It is a schematic diagram of the main view of the diversion chute of the utility model;
[0034] Figure 7 It is a side view schematic diagram of the diversion chute of the utility model;
[0035] Figure 8 It is a first stereoscopic schematic diagram of the diversion chute of the utility model;
[0036] Fig. 9 It is a second stereoscopic schematic diagram of the diversion chute of the utility model. DETAILED DESCRIPTION
[0037] Figure 1 This is a structural diagram of the building-type crushing and filling system of the utility model; Figure 2It is a main schematic diagram of the building-type crushing and filling system of the utility model; Figure 3 It is a top view schematic diagram of the building type crushing and filling system of the utility model; Figure 4 It is a left side schematic diagram of the building type crushing and filling system of the utility model; Figure 5 This is a right side view schematic diagram of the building type crushing and filling system of the utility model. Figures 1 to 5 As shown, the utility model provides a building-type crushing and filling system for crushing materials (raw materials) such as coal gangue, tailings and construction waste into particle sizes suitable for filling the underground filling area 630 and then filling it.
[0038] The building type crushing and filling system includes a steel structure building 900, in which a crushing device, a screening device 400, a finished product bin 500 and a filling device are arranged. The crushing device is configured to crush the large particle size material into the material of the predetermined particle size, so that the crushed material is suitable for filling the underground filling area 630. The screening device 400 is configured to screen the crushed material and transport the crushed material according to the particle size of the crushed material. The finished product bin 500 is configured to receive the material with the predetermined particle size. The filling device is configured to mix the material from the finished product bin with the mixed additive and then transport it to the underground filling area.
[0039] Exemplarily, the crushing device includes one primary crushing device 110 and two secondary crushing devices 120, and the number of the screening devices 400 is two.
[0040] The utility model adopts steel structure to build the building as a whole, without cement concrete, simple structure, short construction period, flexible and detachable; all equipment is installed in one building, occupying a smaller area. The steel structure building 900 can refer to the existing technology such as sand making building, which will not be described here.
[0041] The building-type crushing and filling system of the utility model also includes a conveying device for conveying materials. In different stages of material conveying, the conveying device can be in various forms. For example, the utility model can use a lifting device, a belt conveyor, a screw conveyor, a chute (a chute is a structure that directly connects the discharge port of one device to the feed port of another device, mainly used as a channel for gravity drop) and other devices for conveying materials in the prior art as conveying devices. For the transportation of materials in the horizontal direction or the approximately horizontal direction (the angle between the horizontal direction is less than or equal to 20°), the utility model preferably uses a belt conveyor, because the belt conveying is more reliable, easy to maintain, and has lower cost. For the transportation of materials in the vertical direction or the approximately vertical direction, the utility model preferably uses a lifting device, because the lifting device can be vertically and continuously conveyed, saving the size of the plane space. The lifting device can be an elevator, a bucket lift, a screw conveyor, etc. The utility model preferably uses an elevator as the lifting device, because the elevator can effectively save the size in the plane space. The utility model refers to the devices used for material transportation as conveying devices. In addition, in the process of conveying materials, a combination of various forms of conveying devices can be used, such as using a lifting device and a belt conveyor to jointly convey materials.
[0042] It should be added that, unless otherwise specified, the present invention does not limit the type of conveying device. For example, although the belt conveyor is used as an example below to transport materials in a horizontal or approximately horizontal direction, the belt conveyor can also be replaced by other applicable conveying devices in the prior art.
[0043] In the existing gangue filling technology, the material conveying equipment mainly adopts belt conveyor for conveying, that is, the belt conveyor is connected to the crusher discharge and conveys the material to the screening machine feeding port. Since the belt conveyor has an inclination angle limitation, the material is easy to roll down when the inclination angle is too large. In order to meet the feeding requirements, the length of the belt conveyor is very long, and the overall equipment occupies a large area. The utility model adopts a lifting device as one of the conveying devices, which can directly lift the material to a certain height, reduce the layout of the belt conveyor, and the overall footprint is smaller.
[0044] In the process of material crushing, it is difficult to crush all the materials to the required particle size at one time. Therefore, the utility model provides a primary crushing device 110 and a secondary crushing device 120 for crushing the materials together. The crushing device can be a jaw crusher, a gyratory crusher, a cone crusher, a roller crusher, a hammer crusher and an impact crusher, etc. The impact crusher is preferably used because the impact crusher has a relatively large crushing force, which can directly crush part of the materials to the target particle size or close to the target particle size, thereby reducing the operating pressure of the next stage of crushing.
[0045] The screening device 400 is configured to screen the crushed material and transport the crushed material according to the particle size of the crushed material. For example, the crushed material is transported to the secondary crushing device 120 or the finished product bin 500. More specifically, if the crushed material has met the requirements for filling the underground filling area 630, the crushed material is transported to the finished product bin 500; if the crushed material does not meet the requirements for filling the underground filling area 630, the crushed material is transported to the secondary crushing device 120. The utility model does not limit the specific size of the particle size of the crushed material, and a person skilled in the art can design and select according to actual conditions.
[0046] The screening device 400 can adopt a relaxation screen, an air flow screen, a cylindrical screen, a single-stage vibrating screen, a multi-stage vibrating screen and a roller screen, etc. Preferably, the screening device 400 is a relaxation screen, and the screen is made of rubber. During operation, the screen is alternately tightened and relaxed, and the screen holes are constantly deformed, which increases the vibration degree of the screen surface and prevents the material from adhering to the screen and clogging the screen holes.
[0047] The primary crushing device 110, the secondary crushing device 120 and the screening device 400 are respectively arranged on their own independent installation platforms 910, and the independent installation platforms 910 are independent of the steel structure building 900. In other words, the installation and setting of the independent installation platform 910 are not interdependent with the steel structure building 900. Except for the passage for passage, the independent installation platform 910 and the steel structure building 900 are not connected to each other. Furthermore, the multiple independent installation platforms 910 are independent of each other and are not connected to each other. The independent independent installation platform 910 effectively avoids the vibration of the steel structure building 900 caused by the equipment such as the primary crushing device 110, the secondary crushing device 120 and the screening device 400, and also avoids the influence of vibration on other equipment on the steel structure building 900, while reducing the load of the steel structure building 900 and extending the service life of the building type crushing and filling system.
[0048] The independent installation platform 910 may be a steel structure platform in the prior art, used to support the primary crushing device 110, the secondary crushing device 120 and the screening device 400. Exemplarily, the main body of the independent installation platform 910 may be composed of a mounting plane and a support frame, and each independent installation platform 910 is installed on the ground. More specifically, the support frame is installed on the ground, and a mounting plane is provided thereon, and the primary crushing device 110, the secondary crushing device 120 and the screening device 400 are installed on the mounting plane.
[0049] The primary crushing device 110 is located inside the steel structure building 900 and is indirectly arranged on the ground through the independent installation platform 910. The feeding system of the primary crushing device 110 is arranged outside the steel structure building 900. In order to match a variety of working environments, the present invention does not limit the structure and type of the feeding system.
[0050] For example, the feeding belt conveyor 810 of the feeding system can be directly connected to a coal washing plant, and the gangue washed out of the coal washing plant can be directly transported to the primary crushing device 110 through the feeding belt conveyor 810 .
[0051] Alternatively, the feeding system can be fed from a gangue bin / tank, in which case a feeding belt conveyor 810 is installed in the gangue bin / tank, a feeder 820 is installed above the feeding belt conveyor 810, and a filtering and impurity removal device 830 can be optionally built above the feeder 820, and a forklift is used or the material is directly dropped onto the filtering and impurity removal device 830, the filtering and impurity removal device 830 filters out impurities and large particles, etc., and the filtered materials fall into the feeder 820, and the feeder 820 transfers the materials to the feeding belt conveyor 810 for feeding. It should be noted that the feeding belt conveyor 810 is selected as the conveying device here, because in general, the feeding is long-distance feeding, and the feeding belt conveyor 810 has high versatility with the customer's equipment. Of course, the utility model is not limited to this, and other types of conveying devices can also be selected.
[0052] In order to remove iron materials from materials such as coal gangue, an iron remover 840 can be installed above the conveying device at the inlet and outlet of the primary crushing device 110. For example, the iron remover is arranged above the feeding belt conveyor 810. In addition, an independent dust removal device (dust removal point) can be installed at the conveying device for fixed-point dust removal.
[0053] By using the feeding belt conveyor 810 to feed the primary crushing device 110, it is more flexible. Combined with the filtering and impurity removal device 830 used when feeding the gangue bin / tank, the influence of large particles on the primary crushing is effectively eliminated through filtering, thus realizing the flexible application of the tower.
[0054] In order to facilitate the maintenance and replacement of wearing parts of the primary crushing device 110, a maintenance hoisting mechanism is provided above the primary crushing device 110, and the maintenance hoisting mechanism is installed on the steel structure building 900 through a hoisting bracket.
[0055] A first belt conveyor 210 is disposed below the discharge port of the primary crushing device 110, and the discharge port of the primary crushing device 110 is connected to the feed port of the first belt conveyor 210. The first belt conveyor 210 can be installed above or below the ground according to actual working conditions.
[0056] The discharge port of the first belt conveyor 210 is connected to the feed ports of two semi-finished product lifting devices 310 through a diversion chute 211. The two semi-finished product lifting devices 310 are symmetrically distributed on both sides of the first belt conveyor 210 and the feed ports of the two semi-finished product lifting devices 310 are both facing the first belt conveyor 210.
[0057] Figure 6 It is a schematic diagram of the main view of the diversion chute of the utility model; Figure 7 It is a side view schematic diagram of the diversion chute of the utility model; Figure 8 It is a first stereoscopic schematic diagram of the diversion chute of the utility model;
[0058] Fig. 9 The second stereoscopic schematic diagram of the diverter chute of the utility model. The diverter chute is used for material distribution in the material conveying process of the building-type crushing and filling system. It can be designed with an automatically controlled switching system. For example, the diverter chute 211 includes a feed port 212 and multiple outlet pipelines 213 (in this embodiment, there are two outlet pipelines 213). After the material enters the diverter chute from the feed port 212, it flows out through multiple outlet pipelines 213, and each outlet pipeline 213 is installed with a stop valve 214 and a variable valve 215; the stop valve 214 can use two control modes, automatic and manual control, which can make the outlet pipeline 213 fully open or fully closed, and does not have the function of regulating flow; the stop valve 214 is a valve with a stop function. The variable valve 215 can be an automatically controlled valve, which can adopt various control methods such as electric and pneumatic, without manual intervention, and the switch state can be accurately controlled. The material flow rate can be adjusted according to needs to improve production efficiency and achieve uniform material distribution; the variable valve 215 is a valve with a flow change function. The material enters the diverter chute 211 from the feed port 212 and then enters each outlet pipeline 213, first passes through the variable valve 215 and then passes through the stop valve 214, so that the pipeline can be closed more thoroughly, and automatic control switching of production capacity can be achieved. In addition to the above, other types of diverter chute 211 designs that can be automatically controlled in the prior art can also be used. It should be added that the diverter chute 211 can be set inclined or vertically.
[0059] In order to ensure smooth material discharge, the angle between the outlet pipeline 213 and the ground is not less than 60 degrees. When there are two outlet pipelines 213 , the outlets of the two outlet pipelines 213 are symmetrically distributed on both sides of the feed port 212 .
[0060] Since the cross-sectional area of the outlet pipeline is large and the flow rate of the powder in the pipeline is large, when the stop valve is on top, a large amount of powder will accumulate on the stop valve. As the passing area gradually decreases, the stop valve may not be completely closed. Therefore, in order to make the outlet pipeline close more thoroughly, the variable valve 215 is located above the stop valve 214.
[0061] It should be added that the present invention is not limited to this, and the diverting chute 211 can not only be used at the discharge port of the first belt conveyor 210, so that the material enters the feed port of the two semi-finished product lifting devices 310 from the discharge port of the first belt conveyor 210, but can also be set at other locations, and the diverting chute 211 can also be used to connect other material conveying devices, such as bucket elevators, etc. By controlling the number and position of the outlet pipelines 213, the diverting chute 211 can transport materials transported from one place to multiple places.
[0062] In order to realize automatic control of material distribution, the diversion chute also includes a weighing device arranged downstream of the diversion chute. For example, a weighing device such as a weighing belt can also be arranged downstream of the diversion chute 211 to detect the weight of the material flowing out of each outlet pipeline after material distribution.
[0063] For example, different variable intervals can be matched with different adjustment amounts (of the variable valve opening) in the material unloading control system. The variable interval set in the material unloading control system is matched by the detected material weight. The material unloading control system controls the variable valve opening according to the adjustment amount set in the variable interval, thereby correspondingly adjusting the flow in each outlet pipeline. Alternatively, when the material enters other conveying devices through the diversion chute, the change in the current size of the conveying device can also be detected by the change in the load of the conveying device. According to the change in the current size, the material unloading control system adjusts the flow through the variable valve. Ultimately, for example, the same efficiency of the downstream device is achieved to ensure utilization.
[0064] By setting the above-mentioned diversion chute, a variety of conveying devices can be matched, and the export pipeline is controlled by a double-layer valve, which makes the control more precise and the pipeline cutoff and opening more thorough; combined with the weighing device, automatic material distribution can also be realized without manual intervention, ensuring uniform material distribution, reducing the difficulty of operation, reducing equipment load, and extending the service life of the equipment.
[0065] The second belt conveyor 220 is respectively arranged below the discharge ports of the two semi-finished product lifting devices 310, and the discharge ports of the semi-finished product lifting devices 310 are connected to the feed ports of the second belt conveyor 220. Exemplarily, the second belt conveyor 220 is located on the top floor of the steel structure building 900.
[0066] The discharge ports of the two second belt conveyors 220 are connected to the feed ports of the two screening devices 400 through chutes, respectively, and the feed ports of the two screening devices 400 are located directly below the discharge ports of the chutes. The two screening devices 400 are installed on an independent installation platform 910, and the independent installation platforms 910 of the two screening devices 400 are independent of each other.
[0067] In other words, the two screening devices 400, the two semi-finished product lifting devices 310, and the two second belt conveyors 220 are symmetrically distributed on both sides of the first belt conveyor 210, so that the materials transported from the first belt conveyor 210 can be screened by two sets of screening equipment respectively.
[0068] The two secondary crushing devices 120 are also symmetrically distributed on both sides of the first belt conveyor 210. The screened material discharge ports of the two screening devices 400 are connected to the feed ports of the two secondary crushing devices 120 through chutes, and the feed ports of the two secondary crushing devices 120 are respectively located directly below the screened material discharge ports of the two screening devices 400. The screened material enters the secondary crushing device 120 through the chute.
[0069] The discharge ports of the two secondary crushing devices 120 are respectively connected to the feed ports of the two third belt conveyors 230. The feed ports of the two third belt conveyors 230 are respectively located directly below the discharge ports of the two secondary crushing devices 120. The discharge ports of the two third belt conveyors 230 are connected to the feed port of the first belt conveyor 210 (the first belt conveyor 210 and other belt conveyors may have multiple feed ports), and the crushed screened materials are transported to the screening device 400 again through the first belt conveyor 210 for subsequent processing.
[0070] In other words, the two secondary crushing devices 120 are also symmetrically distributed on both sides of the first belt conveyor 210, so that the screened materials after being screened by the two sets of screening equipment can be crushed again by the two secondary crushing devices 120 respectively.
[0071] A fourth belt conveyor 240 is provided directly below the discharge ports of the undersize materials of the two screening devices 400 . The discharge ports of the undersize materials of the two screening devices 400 are connected to the feed ports of the fourth belt conveyor 240 , and the undersize materials directly fall onto the fourth belt conveyor 240 .
[0072] More specifically, the feed port of the fourth belt conveyor 240 is located directly below the discharge ports of the under-screen materials of the two screening devices 400 and above the first belt conveyor 210. The discharge port of the fourth belt conveyor 240 is connected to the feed port of the finished product lifting device 320 through a chute, the finished product lifting device 320 is located on the side of the screening device 400, the discharge port of the finished product lifting device 320 is connected to the feed port of the fifth belt conveyor 250, the discharge port of the fifth belt conveyor 250 is connected to the feed port of the bidirectional belt conveyor 260, the discharge ports at both ends of the bidirectional belt conveyor 260 are respectively connected to the feed ports of the two finished product bins 500 through the diverter device 290, and the bidirectional belt conveyor 260 is used to forward and reversely rotate to realize the conveyance of materials to the two finished product bins 500.
[0073] The diversion device 290 includes an inlet and a plurality of diversion pipelines, each of which is inserted into the finished product bin 500, and a portion of the diversion pipeline inserted into the finished product bin 500 is provided with a plurality of discharge holes.
[0074] In the process of materials (finished products) falling into the finished product bin 500, larger particles of materials will be segregated from the drop point to the surroundings after entering the finished product bin 500, resulting in uneven distribution of materials in the bin and affecting the mixing effect. By setting the diverter device 290, the number of drop points can be increased, the segregation of materials can be reduced, and the uniformity of materials in the bin can be achieved.
[0075] It should be noted that the present invention does not limit the number and size of the finished product warehouse 500.
[0076] From the above, it can be seen that the building-type crushing and filling system of the utility model adopts a two-stage crushing and more screening and less crushing process route, which realizes energy saving and consumption reduction of the crushing device and the screening device 400, increases the material cost advantage, and improves the finished product rate of gangue crushing and the proportion of powder.
[0077] In addition, the utility model adopts a double lifting device (semi-finished product lifting device 310) for loading, and each semi-finished product lifting device 310 corresponds to a screening device 400 and a secondary crushing device 120 respectively. Combined with the design of the diversion chute 211, the operation of any set of semi-finished product lifting device 310-screening device 400-secondary crushing device 120 can be realized, which not only provides a backup system for equipment maintenance, but also can switch equipment according to the filling volume requirements to adjust the system output, which can effectively reduce the equipment operation cost.
[0078] A weighing belt conveyor 280 for bidirectional material transportation is arranged directly below the discharge port of the finished product warehouse 500. The discharge ports at both ends of the weighing belt conveyor 280 are respectively connected to the feed ports of the two filling devices.
[0079] The filling device is configured to mix the material from the finished product bin 500 with mixed additives (such as water, fly ash, cement, etc.), and transport the mixed material to the underground filling area 630. Exemplarily, the number of the filling devices is two.
[0080] In order to prevent inappropriate materials from being injected into the underground filling area 630 when a fault occurs, the filling device can also transport the materials to an accident pool (such as a separation zone, etc.).
[0081] The filling device includes a mixing device 610 and a pumping device 620. The inlet of the mixing device 610 is connected to the outlet of the weighing belt conveyor 280. The mixing device 610 is used to mix the measured materials in the finished product bin 500 with the mixed additives into slurry and then transmit it to the pumping device 620 through the discharge manifold. The pumping device 620 is used to transport the mixed materials to the underground filling area 630.
[0082] The mixing device 610 may be a vertical mixing device or a horizontal mixing device (such as a single-shaft horizontal mixer or a double-shaft horizontal mixer), and the pumping device 620 may be a plunger pump, a mud pump, a slurry pump, a centrifugal pump or a vane pump.
[0083] During operation, different filling devices can be replaced by adjusting the conveying direction of the weighing belt conveyor 280. For example, two filling devices can be used as a backup.
[0084] In order to reduce dust pollution and improve the utilization rate of materials, the building-type crushing and filling system also includes a dust removal device, which can be placed directly on the ground or installed on the steel structure building 900. In order to save space, the dust removal device is located on the side of the semi-finished product lifting device 310. The utility model does not limit the structure and type of the dust removal device. For example, the dust removal device can be an electrostatic dust collector, a bag dust collector, a cyclone dust collector, a wet dust collector, a cartridge dust collector, etc.
[0085] Exemplarily, the dust removal device may include a screw conveyor 710, a discharge valve 720, a dust collection pipeline, a dust collector 730, a dust removal fan 740, etc. The dust removal fan 740 is connected to the air outlet of the dust collector 730, one end of the dust collection pipeline is connected to the air inlet of the dust collector 730, and the other end is connected to the dust collection point; the dust removal fan 740 drives the dust-containing gas from each dust collection point to enter the dust collector 730 through the dust collection pipeline, and the dust-containing gas is filtered by the dust collector 730 and then passes through the dust collector 730. 0 outlet and then enter the dust removal fan 740 and are discharged from the exhaust port of the dust removal fan 740; the filtered powder is cleaned by the dust collector 730 and then falls into the ash hopper of the dust collector 730, and the powder in the ash hopper is unloaded into the screw conveyor 710 through the discharge valve 720 of the discharge port of the dust collector 730, and the powder is conveyed to the fourth belt conveyor 240 (the discharge port of the screw conveyor is connected to the feed port of the fourth belt conveyor) through the screw conveyor 710, and finally reaches the finished product warehouse 500. The screw conveyor is selected here to convey the dust material, which can ensure uniform material dropping without dust, and the utility model does not directly convey the powder to the finished product warehouse 500, which can control the powder content of the material in the finished product warehouse 500 and avoid uneven powder content of the material in the finished product warehouse 500.
[0086] The present invention does not limit the location of the dust collection point, and those skilled in the art can make design choices as needed. For example, the dust collection point can be set at the inlet and outlet of the primary crushing device 110 and the secondary crushing device 120, near the screening device 400, and at the drop point connecting each conveying device. Figure 1 The circle in the figure schematically shows the location of the dust collection point. It should be noted that the dust collection point should be separated from the material drop point by a certain distance to avoid collecting the finished material.
[0087] In order to facilitate equipment maintenance or debugging, the steel structure building 900 includes a floor, stairs or elevator for personnel to pass through. In order to save space, when stairs are used, the stairs are arranged around the semi-finished product lifting device 310. Personnel can reach different positions of the steel structure building 900 and maintenance points of various components of the building-type crushing and filling system (such as maintenance points of the lifting device) through the floor, stairs or elevator.
[0088] In order to save costs, the upper surface of the finished product warehouse 500 is a part of the top floor of the steel structure building 900. Of course, the present invention is not limited to this, and the number of floors and height of the steel structure building 900 can also be changed. For example, an additional floor can be set above the finished product warehouse 500, and an emergency water tank 510 and the like can be set above the finished product warehouse 500. The emergency water tank 510 can be used for maintenance of the material conveying device in the finished product warehouse 500.
[0089] The working process of the building-type crushing and filling system of the utility model is introduced below with reference to specific examples.
[0090] The primary crushing device 110 is loaded with a belt conveyor. Coal gangue and raw stone are transported to the feeding port of the primary crushing device 110 through the loading belt conveyor 810. After being crushed, they fall onto the first belt conveyor 210. After being divided by the diversion chute 211, they fall into two semi-finished product lifting devices 310 respectively. The two semi-finished product lifting devices 310 lift the materials to the feeding height of the screening device 400, and throw the materials onto the two second belt conveyors 220 of the screening device 400 respectively. The two second belt conveyors 220 respectively transport the materials to the chute at the feeding port of the screening device 400 so that the materials enter the screening device. 400; the screened materials of the two screening devices 400 flow into the two secondary crushing devices 120 through the chute respectively, and the materials after the secondary crushing are transported to the first belt conveyor 210 through the third belt conveyor 230 for re-screening; the screened materials of the two screening devices 400 enter the fourth belt conveyor 240 and are transported to the feeding port of the finished product lifting device 320, and the finished product lifting device 320 lifts the materials to the feeding height of the diverting device 290, and the materials pass through the fifth belt conveyor 250 and then enter the bidirectional belt conveyor 260, and the bidirectional belt conveyor 260 sends the materials to the diverting device 290 and flows into the finished product warehouse 500.
[0091] During this process, the dust removal fan 740 of the dust removal device drives the dust generated during the crushing and screening process. After being filtered by the dust collector 730, the dust is concentrated in the ash hopper of the dust collector 730. The dust in the ash hopper is controlled by the discharge valve 720 to fall into the screw conveyor 710. The screw conveyor 710 transports the powder to the fourth belt conveyor 240 and finally to the finished product warehouse 500. The material falls onto the weighing belt conveyor 280 for bidirectional material transportation, and enters the inlet of the two filling devices from the outlets at both ends of the weighing belt conveyor 280 for filling.
[0092] In summary, the utility model can match a variety of conveying devices by setting a diversion chute, and the outlet pipeline is controlled by a double-layer valve, which is more precise and the pipeline is cut off and opened more thoroughly; combined with a weighing device, it can also realize automatic material distribution without manual intervention to ensure uniform material distribution. By setting a variety of equipment in the steel structure building and using a lifting device to transport materials, the equipment is highly integrated and occupies a smaller area, and the infrastructure and operating costs are lower; by setting the crushing device and the screening device on an independent installation platform, it can be avoided that they cause the steel structure building to vibrate, and the impact of vibration on other equipment on the steel structure building can be avoided. At the same time, the load on the steel structure building is reduced, and the service life of the building type crushing and filling system is extended; the process route of two-stage crushing and more screening and less breaking is adopted to achieve energy saving and consumption reduction of the crushing device and the screening device, increase the material cost advantage, and improve the finished product rate of gangue crushing and the proportion of powder.
[0093] Reference numerals list
[0094] 110 primary crushing device
[0095] 120 Secondary Crushing Device
[0096] 210 First Belt Conveyor
[0097] 211 diversion chute
[0098] 212 Feed port
[0099] 213 export pipeline
[0100] 214 stop valve
[0101] 215 variable valve
[0102] 220 Second belt conveyor
[0103] 230 Third belt conveyor
[0104] 240 Fourth belt conveyor
[0105] 250 Fifth Belt Conveyor
[0106] 260 bidirectional belt conveyor
[0107] 280 weighing belt conveyor
[0108] 290 diversion device
[0109] 310 semi-finished product lifting device
[0110] 320 finished product lifting device
[0111] 400 Screening Device
[0112] 500 finished product warehouse
[0113] 510 emergency water tank
[0114] 610 Mixing Device
[0115] 620 Pumping Device
[0116] 630 Underground filling area
[0117] 710 Screw Conveyor
[0118] 720 discharge valve
[0119] 730 Dust Collector
[0120] 740 dust removal fan
[0121] 810 feeding belt conveyor
[0122] 820 Feeder
[0123] 830 Filtration and impurity removal device
[0124] 840 Iron Remover
[0125] 900 steel structure building
[0126] 910 independent installation platform
Claims
1. A diversion chute, characterized in that: The diversion chute is used for material diversion in the material conveying process of a building-type crushing and filling system. The diversion chute comprises a feed port (212) and a plurality of outlet pipelines (213). A stop valve (214) and a variable valve (215) are installed on each of the outlet pipelines (213).
2. The diversion chute according to claim 1, characterized in that: The angle between the outlet pipeline (213) and the ground is not less than 60 degrees.
3. The diversion chute according to claim 1, characterized in that: The number of the outlet pipelines (213) is two, and the outlet ports of the two outlet pipelines (213) are symmetrically distributed on both sides of the feed port (212).
4. The diversion chute according to claim 1, characterized in that: The variable valve (215) is located above the stop valve (214).
5. The diversion chute according to claim 1, characterized in that: The diversion chute also includes a weighing device arranged downstream of the diversion chute, and the weighing device is used to detect the weight of the material flowing out of each outlet pipeline (213) after the material is divided.
6. A building-type crushing and filling system, characterized in that: The building-type crushing and filling system comprises a steel structure building (900), in which a crushing device, a screening device (400), a finished product bin (500) and a filling device are arranged; the crushing device and the screening device (400) are respectively arranged on respective independent installation platforms (910).
7. The tower-type crushing and filling system according to claim 6, characterized in that: The independent installation platform (910) comprises an installation plane and a support frame, and the independent installation platform (910) is installed on the ground.
8. The tower-type crushing and filling system according to claim 6, characterized in that: The feeding system of the tower-type crushing and filling system comprises a feeding belt conveyor (810), a feeder (820), a filtering and impurity removal device (830) and an iron remover (840), wherein the filtering and impurity removal device (830) is arranged above the feeder (820), and the iron remover (840) is arranged above the feeding belt conveyor (810).
9. The tower-type crushing and filling system according to claim 6, characterized in that: The crushing device comprises a primary crushing device (110) and two secondary crushing devices (120), the number of the screening devices (400) is two, and the number of the filling devices is two.
10. The tower-type crushing and filling system according to claim 9, characterized in that: A first belt conveyor (210) is arranged below the discharge port of the primary crushing device (110), and the discharge port of the primary crushing device (110) is connected to the feed port of the first belt conveyor (210); the discharge port of the first belt conveyor (210) is connected to the feed ports of two semi-finished product lifting devices (310) respectively through a diversion chute (211), and the two semi-finished product lifting devices (310) are symmetrically distributed on both sides of the first belt conveyor (210) and the two semi-finished product lifting devices ( The feeding ports of the two semi-finished product lifting devices (310) are both oriented toward the first belt conveyor (210); second belt conveyors (220) are respectively arranged below the discharging ports of the two semi-finished product lifting devices (310), and the discharging ports of the semi-finished product lifting devices (310) are connected to the feeding ports of the second belt conveyors (220); the discharging ports of the two second belt conveyors (220) are respectively connected to the feeding ports of the two screening devices (400) through chutes, and the feeding ports of the two screening devices (400) are located directly below the discharging ports of the chutes.
11. The tower-type crushing and filling system according to claim 10, characterized in that: The diversion chute (211) comprises a feed port (212) and a plurality of outlet pipelines (213), and each of the outlet pipelines (213) is installed with a stop valve (214) and a variable valve (215).
12. The tower-type crushing and filling system according to claim 10, characterized in that: The on-screen material discharge ports of the two screening devices (400) are respectively connected to the feed ports of the two secondary crushing devices (120) through chutes, and the feed ports of the two secondary crushing devices (120) are respectively located directly below the on-screen material discharge ports of the two screening devices (400); a fourth belt conveyor (240) is arranged directly below the under-screen material discharge ports of the two screening devices (400), and the under-screen material discharge ports of the two screening devices (400) are connected to the feed port of the fourth belt conveyor (240).
13. The tower-type crushing and filling system according to claim 12, characterized in that: The discharge ports of the two secondary crushing devices (120) are respectively connected to the feed ports of the two third belt conveyors (230), and the feed ports of the two third belt conveyors (230) are respectively located directly below the discharge ports of the two secondary crushing devices (120); and the discharge ports of the two third belt conveyors (230) are connected to the feed port of the first belt conveyor (210).
14. The tower-type crushing and filling system according to claim 13, characterized in that: The two screening devices (400), the two second belt conveyors (220) and the two secondary crushing devices (120) are symmetrically distributed on both sides of the first belt conveyor (210).
15. The tower-type crushing and filling system according to claim 14, characterized in that: The discharge port of the fourth belt conveyor (240) is connected to the feed port of the finished product lifting device (320) via a chute; the finished product lifting device (320) is located on the side of the screening device (400); the discharge port of the finished product lifting device (320) is connected to the feed port of the fifth belt conveyor (250); the discharge port of the fifth belt conveyor (250) is connected to the feed port of the bidirectional belt conveyor (260); the discharge ports at both ends of the bidirectional belt conveyor (260) are respectively connected to the feed port of the finished product warehouse (500) via a diversion device (290).
16. The tower-type crushing and filling system according to claim 15, characterized in that: The diversion device (290) comprises an inlet and a plurality of diversion pipelines, the plurality of diversion pipelines are respectively inserted into the interior of the finished product bin (500), and the portion of the diversion pipeline inserted into the interior of the finished product bin (500) is provided with a plurality of discharge holes.
17. The tower-type crushing and filling system according to claim 16, characterized in that: A weighing belt conveyor (280) for bidirectionally transporting materials is arranged directly below the discharge port of the finished product warehouse (500), and the discharge ports at both ends of the weighing belt conveyor (280) are respectively connected to the feed ports of two filling devices; the filling devices include a mixing device (610) and a pumping device (620).
18. The tower-type crushing and filling system according to claim 17, characterized in that: The building-type crushing and filling system also includes a dust removal device, which includes a screw conveyor (710), a discharge valve (720), a dust collection pipeline, a dust collector (730) and a dust removal fan (740), wherein the dust removal fan (740) is connected to the air outlet of the dust collector (730), one end of the dust collection pipeline is connected to the air inlet of the dust collector (730), and the other end is connected to the dust collection point, and the discharge port of the screw conveyor (710) is connected to the feed port of the fourth belt conveyor (240).