Mixing equipment for filling slurry
The integrated miniaturized filling slurry mixing equipment solves the hydraulic system problems of the existing filling pump, achieves uniform mixing and continuous supply of slurry, and improves the efficiency and safety of downhole filling operations.
Patent Information
- Application Number
- CN202422832108.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-11-30
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing industrial filling pumps have problems with the hydraulic system, discontinuous filling, low filling pressure, short delivery distance, easy pipe blockage and large footprint, which affect the efficiency and safety of underground filling operations.
An integrated miniaturized filling slurry mixing equipment was designed, including conveying, mixing and discharging devices. It adopted a stirring shaft drive, liquid level monitoring, slurry flow meter, etc., and actively discharged the slurry through a centrifugal pump to achieve uniform mixing and continuous supply of the slurry.
It improves the mixing uniformity of the slurry, avoids pipe blockage and equipment damage, ensures the high-pressure pumping capacity of the filling pump skid, meets the requirements of automated control, and achieves the continuity and safety of downhole filling.
Smart Images
Figure CN223454068U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tailings or gangue stirring mixed technical field, and specifically, relate to a kind of tailings or gangue stirring mixed equipment. BACKGROUND
[0002] In the mining field, the large amount of coal gangue stacking, not only occupies land, affects ecological environment, gangue leaching water pollutes surrounding soil and groundwater, and coal gangue contains certain combustible material, spontaneous combustion occurs under suitable conditions, emits sulfur dioxide, nitrogen oxides, carbon oxides and harmful gas such as smoke dust, pollutes atmospheric environment, affects the health of mine residents. Coal mining activities leave a lot of goaf, if not timely processing, goaf size becomes larger and larger, can cause goaf roof strata to suddenly collapse, not only endangers underground operation safety, but also can cause overburden strata and even surface layer to move and deform, and serious time can lead to surface subsidence, ground fissure and other major geological disasters, cause serious damage to surface buildings.
[0003] Filling mining is to prevent surface subsidence from source, realize green mining mode with minimum ecological disturbance to obtain mineral resources, limit the influence on ecological environment, soil resources and infrastructure in the minimum range. Because of its safety, adaptability, environmental protection and economic benefit, it is gradually popularized in the mining market, which can not only process existing gangue, tailings and solid waste, reduce environmental pollution and mining accidents, but also increase mine capacity and prolong life.
[0004] Therefore, direct sorting and filling goaf in underground is the best method to solve the problem of land occupation and environmental pollution. Based on this, for underground gangue not lifting filling, according to the situation of underground mine, integrated and small gangue slurry mixing equipment is developed, which can not only improve ecological environment, but also has broad market application prospect and engineering practical significance. SUMMARY
[0005] The purpose of the present application is to provide a filling slurry mixing device, which can realize sufficient stirring and mixing of the slurry and active discharge of the slurry, thereby improving the discharge efficiency of the slurry and effectively and continuously supplying the slurry to the filling pump skid.
[0006] To achieve the above object, according to one aspect of the present application, the inventors have developed a mixing device for filling slurry, which comprises a conveying device, a mixing device and a discharging device, the conveying device is used to convey raw materials for forming the filling slurry to the mixing device, the mixing device is used to mix the raw materials conveyed from the conveying device, and the discharging device is connected to the mixing device and discharges the mixed filling slurry in the mixing device, wherein the discharging device comprises a slurry discharging pump, a slurry discharging motor and a slurry discharging manifold, and the slurry discharging motor drives the slurry discharging pump to work to discharge the slurry in the mixing device through the slurry discharging manifold.
[0007] Further, the raw materials include solid materials and liquid, the conveying device includes a storage hopper for storing the solid materials, a solid material conveyor for conveying the solid materials, and a liquid conveying manifold for supplying the liquid.
[0008] Further, the mixing device includes a liquid level monitor for measuring the liquid level of the slurry.
[0009] Further, the discharging device includes a slurry flow meter for measuring the discharge flow of the slurry.
[0010] Further, the conveying device includes a liquid flow meter for measuring the flow of the liquid in the liquid conveying manifold.
[0011] Further, the conveying device, the mixing device and the discharging device are integrated.
[0012] Further, the mixing device can be connected to a pumping system for pumping the filling slurry in the mixing device to a filling position.
[0013] Further, one mixing device can be connected to one or more pumping systems; or one or more mixing devices can be connected to one pumping system; and / or the mixing device and the pumping system can be integrated.
[0014] Further, the solid materials are any one of gangue, tailings, cement, fly ash; and the liquid includes water or aqueous solution.
[0015] Further, the discharging device further comprises a slurry circulating pump, a slurry circulating motor and a slurry circulating manifold, and the slurry circulating motor drives the slurry circulating pump to work to circulate a part of the discharged slurry back to the mixing device through the slurry circulating manifold for further mixing and stirring.
[0016] Further, the mixing device further comprises a skid rack, wherein the skid rack is used for carrying the conveying device, the mixing device and the discharging device.
[0017] The technical scheme of the utility model can achieve the following beneficial effects:
[0018] The mixing device for filling slurry can fully stir the filling operation slurry, thereby improving the mixing uniformity of the slurry, providing guarantee for sufficient mixing and supply of the slurry, effectively avoiding filling stop due to insufficient mixing during the operation process and other problems, causing pipeline blockage or equipment damage and other problems and causing poor operation effect. In addition, the centrifugal pump actively discharges the slurry in the mixing device, which can ensure that the filling pump skid low-pressure suction end has a certain liquid supply pressure, ensure that the filling pump skid can pump the slurry to the underground goaf at high pressure, and on the other hand, can control the slurry discharge flow to meet the automatic control requirements of the complete set of equipment. BRIEF DESCRIPTION OF DRAWINGS
[0019] The drawings described herein are used to provide further understanding of the utility model and form a part of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:
[0020] Figure 1 is a schematic view showing the mixing device for filling slurry of the utility model;
[0021] Figure 2 is a schematic view showing Figure 1 is a top view of the mixing device for filling slurry shown in the figure;
[0022] Figure 3 is a schematic view showing that the mixing device for filling slurry of the utility model is connected with the pumping system. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will combine the specific embodiments of the utility model and the corresponding drawings to clearly and completely describe the technical scheme of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0024] The technical solutions of the various embodiments disclosed by the utility model are described in detail below with reference to the drawings. For the purpose of simplicity, the reference signs of various components are not necessarily shown in each drawing. Generally, for the purpose of emphasis, some drawings only show the reference signs of the relevant components described in the specification with reference to the drawings, and the relevant signs of other components are omitted, but the same reference signs are used for the same components in different drawings.
[0025] The existing industrial filling pump has many problems, which also affects the selection of the industrial filling pump by customers, such as many problems of the hydraulic system, discontinuous filling, low filling pressure, short conveying distance, easy pipe blockage, and large occupation area.
[0026] Therefore, the utility model provides a kind of filling slurry mixing equipment, and conveying system, mixing system, slurry discharge system are integrated into one equipment.The equipment size meets the size requirement underground, realizes miniaturization, integration.
[0027] Figure 1 It is the schematic diagram of the mixing equipment of filling slurry of the utility model; Figure 2 It is the schematic diagram of the mixing equipment of filling slurry of the utility model; Figure 1 It is the top view of the mixing equipment of filling slurry shown in the figure.
[0028] The embodiment of the utility model discloses a kind of mixing equipment of filling slurry, and the mixing equipment includes: conveying device 1, mixing device 2, discharge device 3.
[0029] Conveying device 1 includes storage hopper 11, solid material conveyor 12, liquid delivery manifold 13 and conveyor support device 14.Storage hopper 11 is used to receive solid materials such as gangue, tailings, cement, fly ash, etc.Solid material conveyor 12 is used to convey the solid materials such as gangue stored in storage hopper 11 into mixing device 2.The solid material conveyor 12 here can use an auger conveyor.By controlling the conveying speed of the solid material conveyor 12, the conveying amount of the solid material can be controlled, and the weight of the conveyed solid material can be calculated, so that the weight of the solid material mixed in the slurry can be controlled by controlling the speed of the conveyor.Liquid delivery manifold 13 is used to deliver liquid (such as water or aqueous solution, etc.) into mixing device 2.The liquid flow in liquid delivery manifold 13 can be monitored by setting a liquid flow meter, and the liquid flow can be controlled by setting a liquid flow control valve, thereby adjusting the proportion of the liquid mixed in the slurry.Conveyor support device 14 is used to support solid material conveyor 12, so that solid material conveyor 12 can conveniently convey solid materials.In the above conveying device 1, the solid material conveyor 12 uses an auger conveyor, but it can also use a belt conveying form, and the concentration of the slurry can also be controlled by equipping a weighing conveyor belt.
[0030] The mixing device 2 comprises a stirring shaft driving device 21, a mixing tank 22, a liquid level monitor 23 and a discharge manifold 24. The stirring shaft driving device 21 drives the stirring blades in the mixing tank 22 to fully stir the solid materials and the liquid in the mixing tank 22. The liquid level monitor 23 monitors the liquid level of the slurry in the mixing tank 22, and intelligently controls the liquid level to be within a reasonable range to facilitate the mixing and stirring of the slurry. After the operation is stopped, the mixing tank 22 is cleaned by the liquid delivery manifold 13, and the residual slurry in the mixing tank 22 can be discharged by the discharge manifold 24.
[0031] The discharge device 3 is used for discharging the slurry and comprises a slurry discharge pump 31, a slurry discharge motor 32, a slurry circulating pump 33, a slurry circulating motor 34, a slurry discharge manifold 35, a slurry flow meter 36 and a slurry circulating manifold 37. The slurry discharge motor 32 drives the slurry discharge pump 31 to work, and the slurry in the mixing tank 22 is pumped out to the slurry discharge manifold 35, so that the slurry is supplied to the filling pump skid, and then the slurry is pumped to the underground filling goaf by the high-pressure filling pump skid. The slurry discharge pump 31 herein can be a centrifugal pump. The slurry flow meter 36 is used to monitor the slurry discharge amount, and the rotation speed of the slurry discharge motor 32 is intelligently controlled to change the discharge slurry flow, so as to further control the slurry liquid level in the mixing tank 22. The slurry circulating motor 34 drives the slurry circulating pump 33 to work, and the slurry in the mixing tank 22 is pumped out and then discharged into the mixing tank 22 again through the slurry circulating manifold 37. This step can ensure that the insufficiently mixed slurry is mixed again, thereby facilitating the full stirring of the slurry.
[0032] Through the above-mentioned slurry discharge pump 31, slurry discharge motor 32 and slurry discharge manifold 35, the slurry in the mixing device 2 can be actively supplied to the rear-end filling pump equipment, so as to facilitate the pumping of the slurry to the underground goaf.
[0033] The above describes that the driving system power of each device is motor driving, but a hydraulic system can also be provided, and a hydraulic motor can be used for driving. In addition, the above describes that the discharge device is provided with a centrifugal pump and a motor for actively supplying the slurry to the filling pump skid, but a manifold connection can also be used, and the slurry can be supplied to the filling pump skid in the form of self-flowing of the slurry.
[0034] In addition, as shown in Figure 1 The filling slurry mixing equipment of the utility model can further comprise a skid 4. The skid 4 comprises a skid welding assembly 41, a welding lifting ring 42 and a fixed support 43, wherein the skid welding assembly 41 is used for carrying the delivery device 1, the mixing device 2 and the discharge device 3, and is provided with a forklift hole and can be used for forklift transfer. The welding lifting ring 42 is welded on the skid welding assembly 41 and can be used for hoisting the whole equipment. The fixed support 43 is welded on the skid welding assembly 41 and can be used for fixing the whole equipment on the ground.
[0035] The skid 4 is used to carry the whole structure including the conveying device 1, the mixing device 2 and the discharging device 3. Figure 1 The skid 4 can be an integrated structure as shown.
[0036] In addition, as shown, the mixing device for filling slurry can be connected to the pumping system 5 of the filling pump skid. Figure 3 The pumping system 5 can continuously and stably convey the slurry discharged from the mixing device to the filling site. Figure 3 The mixing device is connected to one pumping system 5, but it is not limited to this.
[0037] The operation mechanism of the above structure is as follows: the conveying device 1 conveys the materials required for mixing through the solid material conveyor 12 and the liquid conveying manifold 13 to the mixing device 2. The mixing device drives the stirring blades through the stirring shaft driving device 21 to mix the materials. The slurry discharging device 3 is connected to the mixing device 2 and discharges the mixed slurry through the slurry discharging pump 31 and the slurry discharging manifold 35. The electrical control system is used to control the mixing concentration and the discharge capacity of the slurry, so as to realize intelligent continuous mixing.
[0038] The utility model has the advantages of:
[0039] According to the utility model, the conveying system, the mixing system and the slurry discharging system are integrated into one device. The device size meets the size requirement of underground, and miniaturization and integration are realized. According to the utility model, the slurry can be mixed in proportion according to the slurry characteristics, and can be continuously supplied to the filling pump skid. The phenomenon of pipe blockage caused by the high and low slurry concentration is solved, and the continuous conveying of the slurry is realized. According to the utility model, the single tank circulating stirring scheme is adopted, the flowability of the slurry in the tank is increased, and the mixing capacity is improved. The solidification groups such as 'grey package water' and 'water package grey' that may appear in the slurry are effectively prevented. The pipe blockage phenomenon is further avoided. The utility model discloses that the slurry in the mixing device is actively discharged by the centrifugal pump, on the one hand, the low pressure suction end of the filling pump skid can have certain liquid supply pressure, and it is ensured that the filling pump skid can pump the slurry to the underground goaf by high pressure, on the other hand, the control of the slurry discharge flow can be realized, so that the automation control requirement of the whole set of equipment is met.
[0040] The above merely illustrates the embodiments of the utility model, and is not intended to limit the utility model. The utility model can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the claim range of the utility model.
[0041] LIST OF REFERENCE NUMERALS:
[0042] 1 conveying device
[0043] 11 storage hopper
[0044] 12 solid material conveyor
[0045] 13 liquid conveying manifold
[0046] 14 conveyor support device
[0047] 2 mixing device
[0048] 21 stirring shaft driving device
[0049] 22 mixing tank
[0050] 23 liquid level monitor
[0051] 24 discharging manifold
[0052] 3 discharging device
[0053] 31 slurry discharging pump
[0054] 32 slurry discharging motor
[0055] 33 slurry circulating pump
[0056] 34 slurry circulating motor
[0057] 35 slurry discharge manifold
[0058] 36 slurry flow meter
[0059] 37 slurry circulation manifold
[0060] 4 sled frame
[0061] 41 sled frame welding assembly
[0062] 42 welding hanger
[0063] 43 fixed support
[0064] 5 pumping system
Claims
1. A mixing apparatus for filling slurry, characterized by, The filling slurry production system comprises a conveying device (1), a mixing device (2) and a discharging device (3), the conveying device (1) is used for conveying raw materials for forming the filling slurry to the mixing device (2), the mixing device (2) is used for mixing the raw materials conveyed from the conveying device (1), and the discharging device (3) is connected to the mixing device (2) and discharges the filling slurry mixed in the mixing device (2), The discharging device (3) comprises a slurry discharging pump (31), a slurry discharging motor (32) and a slurry discharging manifold (35), the slurry discharging motor (32) drives the slurry discharging pump (31) to work to discharge the slurry in the mixing device (2) through the slurry discharging manifold (35).
2. A mixing apparatus for filling slurry according to claim 1, wherein The raw materials comprise solid materials and liquid, the conveying device (1) comprises a storage hopper (11) for storing the solid materials, a solid material conveyor (12) for conveying the solid materials and a liquid conveying manifold (13) for supplying the liquid.
3. A mixing apparatus for filling slurry according to claim 1, wherein The mixing device (2) comprises a liquid level monitor (23) for measuring the liquid level of the slurry.
4. The mixing apparatus for filling slurry according to claim 1, wherein The discharging device (3) comprises a slurry flow meter (36) for measuring the discharge flow of the slurry.
5. A mixing apparatus for filling slurry according to claim 2, wherein The conveying device (1) comprises a liquid flow meter for measuring the flow of the liquid in the liquid conveying manifold (13).
6. The mixing apparatus for filling slurry according to claim 1, wherein The conveying device (1), the mixing device (2) and the discharging device (3) are integrated.
7. The mixing apparatus for filling slurry according to claim 1, wherein The mixing device can be connected to a pumping system for pumping the filling slurry in the mixing device to a filling position.
8. A mixing apparatus for filling slurry according to claim 7, wherein One mixing device can be connected to one or more pumping systems; or one or more mixing devices can be connected to one pumping system; And / or the mixing device and the pumping system can be integrated.
9. A mixing apparatus for filling slurry according to claim 2, wherein The solid materials are any one of gangue, tailings, cement and fly ash; and the liquid comprises water or aqueous solution.
10. The mixing apparatus for filling slurry according to claim 1, wherein The discharging device (3) further comprises a slurry circulating pump (33), a slurry circulating motor (34) and a slurry circulating manifold (37), the slurry circulating motor (34) drives the slurry circulating pump (33) to work to circulate a part of the discharged slurry back to the mixing device (2) through the slurry circulating manifold (37) for further mixing and stirring.
11. A mixing apparatus for filling slurry according to claim 1, wherein The mixing device further comprises a skid (4), wherein the skid (4) is used for carrying the conveying device (1), the mixing device (2) and the discharging device (3).