Chute system for multi-point blanking of coal gangue
By designing a multi-point discharge chute system and utilizing the dynamic adjustment of staggered discharge interfaces and high-pressure air nozzles, the problem of uneven material distribution caused by the beam structure of traditional chutes was solved, achieving uniform distribution of coal gangue and balanced equipment load, thus improving the stability and efficiency of the production line.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-10
AI Technical Summary
When a traditional chute crosses the beam structure below a vibrating screen, it alters the material flow path, which can easily lead to material segregation and accumulation, resulting in uneven loads on downstream equipment and affecting the stability and efficiency of the production line.
Design a multi-point feeding system including a vibrating screen, chute, feeding device and adjustment mechanism. The system achieves uniform distribution of material flow by setting the axes of multiple discharge interfaces in a staggered manner and dynamically adjusting the high-pressure air nozzles.
This achieves uniform distribution of materials among downstream equipment, avoids uneven equipment load, and improves the stability and efficiency of the production line.
Smart Images
Figure CN224104793U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model discloses a chute system for coal gangue multi-point unloading belongs to material unloading device technical field. BACKGROUND
[0002] Coal gangue is the main solid waste in the process of coal mining and washing, and its comprehensive utilization is an important link to promote circular economy and green mine construction. In the process of coal gangue resource processing, the vibrating screen as a key sorting equipment needs to distribute the screened materials evenly to the downstream two belt conveyors through the chute to meet the continuous production needs of subsequent crushing, sorting or brick making processes.
[0003] However, in actual application, due to the limited installation space of the equipment and the constraints of the civil structure layout, the chute below the vibrating screen often needs to cross the beam system below the vibrating screen to complete the conveying of the materials. This special layout leads to the fact that the traditional chute design mostly relies on fixed flow guide plates or static distributors. However, when the chute crosses the beam system, the flow path of the materials is forced to change, which not only easily causes segregation or accumulation of the materials, but also leads to serious imbalance in the distribution ratio between the two conveyors. Especially when dealing with coal gangue with high flow and wide particle size distribution, the existing distribution device lacks dynamic adjustment capability, making it difficult to achieve uniform distribution of the materials, ultimately causing uneven load of the downstream equipment. This problem specifically manifests as a series of chain reactions such as deviation of the belt conveyor and overload of the motor, seriously affecting the stability and efficiency of the production line. SUMMARY
[0004] The utility model overcomes the insufficient prior art, proposes a chute system for coal gangue multi-point unloading, comprising: a vibrating screen, a chute, a distribution device with multiple gears, and an adjusting mechanism.
[0005] The vibrating screen is arranged above the chute and is used for screening coal gangue materials.
[0006] The chute includes an upper receiving chute and a lower multi-point unloading chute. The upper receiving chute is connected with the discharge port of the vibrating screen and is used for receiving the coal gangue materials conveyed by the vibrating screen. The lower multi-point unloading chute is provided with multiple unloading interfaces, and the axis extension direction of the multiple unloading interfaces is arranged in a staggered manner with the structural beam below the vibrating screen.
[0007] The distribution device is arranged in the upper receiving chute and is used for controlling the flow of coal gangue materials of each unloading interface according to different gears.
[0008] The adjusting mechanism is connected with the distribution device and is used for adjusting the control gear of the distribution device.
[0009] Preferably, the distributing device comprises a plurality of high-pressure air nozzles;
[0010] The plurality of high-pressure air nozzles are arranged around the inner surface of the upper material receiving chute;
[0011] Each group of high-pressure air nozzles controls the flow of the coal gangue material of the corresponding discharge interface by adjusting the air flow intensity of the nozzles.
[0012] Preferably, the adjusting mechanism comprises a controller;
[0013] The controller is connected with the plurality of high-pressure air nozzles respectively, and is used for adjusting the blowing direction of each group of high-pressure air nozzles and the air flow intensity of the nozzles.
[0014] Preferably, the adjusting mechanism further comprises a material flow sensor;
[0015] The material flow sensor is arranged downstream of the discharge interface and is connected with the controller, and is used for feeding back the material distribution ratio to the controller in real time.
[0016] Preferably, each high-pressure air nozzle is a rotatable nozzle;
[0017] The rotatable nozzle has a rotation angle range of 0°-180°, and the blowing direction forms a preset angle with the falling track of the material.
[0018] Preferably, the chute system further comprises a detachable buffer lining plate;
[0019] The detachable buffer lining plate is arranged on the inner wall of the discharge interface;
[0020] The surface of the detachable buffer lining plate is an arc flow guide surface, and the curvature radius of the arc flow guide surface matches the particle size distribution range of the coal gangue material.
[0021] Preferably, the discharge interface is four in number;
[0022] The four discharge interfaces are symmetrically distributed in the lower multi-point discharge chute in a cross shape.
[0023] Preferably, the high-pressure air nozzles are also used for removing the coal gangue material that is hardened on the inner wall of the chute.
[0024] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model avoids the structural beam under the vibrating screen through the axial extension direction of the plurality of discharge interfaces, so as to solve the problem that the material distribution area of the traditional chute is limited due to the blocking of the beam body; the distributing device is controlled by the adjusting mechanism, the material flow of each discharge interface is controlled, the material distribution ratio is controllable, and the uneven material distribution caused by the fact that the chute crosses the structural beam is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is the front view schematic diagram of the embodiment of the utility model;
[0026] Figure 2 It is the top view schematic diagram of the chute, wherein (a) is the top view schematic diagram of the upper material receiving chute, and (b) is the top view schematic diagram of the lower multi-point material discharging chute;
[0027] Figure 3 It is Figure 2 The main view schematic diagram corresponding to the upper material receiving chute and (d) is the main view schematic diagram corresponding to the lower multi-point material discharging chute;
[0028] Figure 4 It is the left view schematic diagram of the embodiment of the utility model.
[0029] In the drawing: 1, chute; 1-1, upper material receiving chute; 1-2, lower multi-point material discharging chute; 2, material distributing device; 3, vibrating screen. DETAILED DESCRIPTION
[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with 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 other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0031] Please refer to Figures 1-3 The embodiment aims to provide a chute system for multi-point coal gangue discharging, and the system comprises the following components:
[0032] The vibrating screen 3 is arranged above the chute 1 and is used for screening coal gangue materials, and there is a beam structure below the vibrating screen 3 for supporting the vibrating screen 3.
[0033] The chute 1 comprises the upper material receiving chute 1-1 and the lower multi-point material discharging chute 1-2. The upper material receiving chute 1-1 is connected with the discharge port of the vibrating screen 3 and receives the screened coal gangue. The lower multi-point material discharging chute 1-2 is provided with multiple discharging interfaces, and the arrangement of the multiple discharging ports corresponds to the structural beam below the vibrating screen 3. In the embodiment, the structural beam is a cross structure, and based on this, the embodiment specifically comprises four discharging interfaces which are symmetrically distributed in a cross shape, and the axis extension direction of each discharging interface is arranged in a staggered manner with the structural beam below the vibrating screen 3 to avoid cross interference.
[0034] The material distributing device 2 is arranged in the upper material receiving chute 1-1 and comprises multiple groups of high-pressure air nozzles.
[0035] The adjusting mechanism comprises a controller and a material flow sensor, which are used to control the gear of the distributing device 2 to dynamically adjust the distribution ratio of the coal gangue.
[0036] The detachable buffer lining is installed on the inner wall of the discharge interface, and the surface is an arc flow guide surface with a curvature radius matching the particle size of the coal gangue.
[0037] As to the connection mode of the above components, the vibrating screen 3 is fixed on the top of the chute 1 by bolts. The screen hole of the vibrating screen 3 has a preset screen mesh size, and the screened coal gangue enters the lower multi-point discharge chute 1-2 through the upper receiving chute 1-1, and finally enters the belt conveyor.
[0038] The layout of the discharge interface is shown in the embodiment, wherein the four discharge interfaces are cross-symmetrically distributed (as shown in Figure 2 and Figure 3 ), and the axial direction is at a certain distance from the structural beam below the vibrating screen 3 to avoid interference. A plurality of high-pressure air nozzles are arranged around the inner wall of the upper receiving chute 1-1 (as shown in Figure 1 and Figure 4 ), and each high-pressure air nozzle blows towards a specific discharge interface.
[0039] The high-pressure air nozzle is a rotatable nozzle with a rotation angle of 0°-180°, and the blowing direction forms an angle of 30°-60° with the falling track of the material. The rotatable angle of each nozzle and the intensity level of the blowing air flow are adjusted by the controller connected thereto. Specifically, the intensity level of the air flow is divided into three levels of low, medium and high, and the corresponding air speeds are 5 m / s, 10 m / s and 15 m / s, respectively.
[0040] The controller is also connected with a material flow sensor, which is arranged downstream of the discharge interface and used to feed back the distribution ratio to the controller in real time. The controller adjusts the air flow intensity and blowing direction of the corresponding nozzle according to the data provided by the material flow sensor. It is worth noting that the system can be used continuously after debugging, and generally does not need to be adjusted frequently during the distribution process. Therefore, in another embodiment, the system can not contain the material flow sensor, but rely on the debugging personnel to adjust the controller by manual judgment during the debugging stage.
[0041] The detachable buffer lining is fixed to the inner wall of the discharge interface by a buckle, and the curvature radius of the arc flow guide surface is 300 mm, which effectively reduces the impact wear of the material.
[0042] In addition, the high-pressure air nozzle can also be periodically switched to the "cleaning mode" (i.e. the highest level) to blow off the hardened material accumulated on the inner wall of the chute 1. It should be noted that the cleaning mode should be carried out in the non-distribution mode.
[0043] The working principle of the embodiment is briefly described as follows: the coal gangue is screened by the vibrating screen 3 and then enters the upper material receiving chute 1-1. The controller adjusts the air flow intensity of the corresponding high-pressure air nozzle according to the preset material distribution ratio, and drives the coal gangue to flow to the designated unloading interface. The coal gangue material is uniformly unloaded after being guided by the buffer lining plate, and the sensor monitors the flow in real time and feeds back to the controller, realizing dynamic adjustment.
[0044] The axis extension direction of the plurality of unloading interfaces avoids the structural beam under the vibrating screen 3, so as to solve the problem that the material distribution area is limited due to the blocking of the beam body of the traditional chute 1; the adjusting mechanism controls the material distribution device 2, controls the material flow of each unloading interface, realizes controllable material distribution ratio, and avoids the uneven material distribution caused by the fact that the chute 1 crosses the structural beam.
[0045] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A chute system for multi-point discharge of coal gangue, characterized in that, The invention relates to a coal gangue material conveying system, which comprises: a vibrating screen, a chute, a material distributing device with multiple gears and an adjusting mechanism; the vibrating screen is arranged above the chute and used for screening coal gangue material; the chute comprises an upper receiving chute and a lower multi-point discharging chute, the upper receiving chute is connected with a discharging port of the vibrating screen and used for receiving the coal gangue material conveyed by the vibrating screen, the lower multi-point discharging chute is provided with multiple discharging interfaces, and the axis extension direction of the multiple discharging interfaces is arranged in a staggered manner with a structural beam below the vibrating screen; the material distributing device is arranged in the upper receiving chute and used for controlling the flow of the coal gangue material of each discharging interface according to different gears; the adjusting mechanism is connected with the material distributing device and used for adjusting the control gear of the material distributing device.
2. The chute system of claim 1, wherein, The material distributing device comprises multiple groups of high-pressure air nozzles; the multiple groups of high-pressure air nozzles are arranged around the inner surface of the upper receiving chute; each group of high-pressure air nozzles controls the flow of the coal gangue material of the corresponding discharging interface by adjusting the air flow intensity gear of the nozzle.
3. The chute system of claim 2, wherein, The adjusting mechanism comprises a controller; the controller is connected with the multiple groups of high-pressure air nozzles respectively and used for adjusting the blowing direction of each group of high-pressure air nozzles and the air flow intensity gear of the nozzle.
4. The chute system of claim 3, wherein, The adjusting mechanism further comprises a material flow sensor; the material flow sensor is arranged downstream of the discharging interface and connected with the controller and used for feeding back the material distribution ratio to the controller in real time.
5. The chute system of claim 2, wherein, Each high-pressure air nozzle is a rotatable nozzle head; the rotatable nozzle head has a rotation angle range of 0°-180°, and the blowing direction forms a preset angle with the material falling track.
6. The chute system of claim 1, wherein, The chute system further comprises a detachable buffer lining plate; the detachable buffer lining plate is arranged on the inner wall of the discharging interface; the surface of the detachable buffer lining plate is an arc-shaped flow guide surface, and the curvature radius thereof matches the particle size distribution range of the coal gangue material.
7. The chute system of claim 1, wherein, The discharging interface is specifically four; the four discharging interfaces are arranged in a cross-symmetrical manner in the lower multi-point discharging chute.
8. The chute system of claim 2, wherein, The high-pressure air nozzle is also used for removing the coal gangue material that is caked on the inner wall of the chute.