Automatic water distribution system for bulk materials

Abstract

The utility model discloses a bulk material automatic water distribution system which comprises a material conveying belt, a material conveying belt is arranged at the discharging end of the material conveying belt in a lap joint mode, a dispersing water distributor is installed at the lap joint position of the material conveying belt and the material conveying belt, the dispersing water distributor supplies water through a water distribution pipe, and a control valve is installed on the water distribution pipe. When automatic water distribution is carried out on bulk materials, water distribution filling can be carried out on thin coal materials passing through the dispersion water distributor through the moisture detection control system, the uniformity of water distribution of the bulk coal materials is guaranteed, and the water distribution efficiency is improved. Therefore, the content rate of the bulk coal material is integrally kept within a relatively accurate numerical value.

Description

Technical Field

[0001] The utility model relates to the field of automatic water distribution for materials, in particular to an automatic water distribution system for bulk materials. Background Art

[0002] Before entering the boiler for combustion, bulk coal needs to be watered to maintain a certain moisture content. This watering not only reduces dust pollution but also improves combustion efficiency: The right amount of water releases heat during coal combustion, accelerating the combustion process. Simultaneously, water vapor reacts with impurities in the coal, decomposing them more fully and reducing pollutant generation. However, excessive water content can lead to unstable combustion and even pose safety risks. Too little water, however, may not fully enhance the watering effect. Generally, one ton of coal absorbs approximately 100 kilograms of water (a moisture content of 10 percent).

[0003] The existing bulk coal material automatic water distribution system mainly installs a water spray pipe (12) and a moisture detector 3 (such as Figure 4 As shown), the moisture content of the material is detected in real time by the moisture detector 3 to control the flow of the control valve 7 of the water spray pipe 12, thereby ensuring that the moisture content of the bulk coal is kept within a reasonable range. However, since the coal on the material conveyor belt is relatively thick, it is difficult to spray evenly by directly spraying it through the water spray pipe 12, resulting in inaccurate detection by the moisture detector 3 at the rear end, affecting the accuracy of the moisture content of the bulk coal. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an automatic water distribution system for bulk materials.

[0005] The utility model is realized through the following technical solutions:

[0006] An automatic water distribution system for bulk materials includes a material conveyor belt, a material transfer belt is overlapped at the discharge end of the material conveyor belt, a dispersed water distributor is installed at the overlap of the material transfer belt and the material conveyor belt, the dispersed water distributor supplies water through a water distribution pipe, a control valve is installed on the water distribution pipe, and the control valve controls the flow through a moisture detection and control system.

[0007] Further optionally, the dispersed water distributor includes an umbrella-shaped dispersion cone, a plurality of mounting holes are annularly opened on the dispersion cone, and nozzles are embedded and installed in the mounting holes. The nozzles are connected and fixed to the water distribution pipe through branch pipes.

[0008] Further optionally, the branch pipe is arranged inside the dispersion cone, and the outlet end of the water distribution pipe extends to the interior of the dispersion cone.

[0009] Further optionally, the dispersed water distributor is fixed on the frame of the material conveyor belt through a mounting bracket, and the top of the dispersed water distributor is directly opposite to the coal dropping point of the material conveyor belt discharge port.

[0010] Further optionally, the moisture detection control system includes a moisture detector installed on the upper part of the material conveyor belt, the moisture detector is electrically connected to the PLC controller, and the PLC controller is electrically connected to the control valve.

[0011] Compared with the existing technology, the beneficial effect of the present invention is that when the present invention automatically distributes water to bulk materials, the moisture detection control system can be used to distribute water and add water to the thinner coal materials that have passed through the dispersed water distributor, thereby ensuring the uniformity of the water distribution of the bulk coal materials, thereby achieving the overall content rate of the bulk coal materials to be maintained within a relatively precise numerical requirement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the utility model system;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the practical dispersed water distributor;

[0014] Figure 3 yes Figure 2 Another schematic diagram of ;

[0015] Figure 4 It is a schematic diagram of the prior art of this utility;

[0016] In the figure: material conveyor belt 1, material transfer belt 2, moisture detector 3, PLC controller 4, dispersed water distributor 5, water distribution pipe 6, control valve 7, disperser cone 8, branch pipe 9, mounting hole 10, nozzle 11, water spray pipe 12. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] like Figure 1 As shown, an automatic water distribution system for bulk materials includes a material conveyor belt 1, a material transfer belt 2 is overlapped at the discharge end of the material conveyor belt 1, and a dispersed water distributor 5 is installed at the overlap of the material transfer belt 2 and the material conveyor belt 1. The dispersed water distributor 5 reduces the thickness of the coal material and ensures the uniformity of water distribution. The dispersed water distributor 5 supplies water through a water distribution pipe 6, and a control valve 7 is installed on the water distribution pipe 6. The control valve 7 controls the flow through a moisture detection control system.

[0019] like Figure 2As shown, the dispersed water distributor 5 includes an umbrella-shaped disperser cone 8, which has good uniform dispersion and reduces the water distribution thickness of the coal material. A plurality of mounting holes 10 are provided in a ring on the disperser cone 8, and the ring-arranged nozzles 11 spray without dead angles. The nozzles 11 are embedded in the mounting holes 10. The nozzles 11 are metal atomizing micro nozzles, which make the spraying more uniform and have a larger radiation surface. The nozzles 11 are connected and fixed to the water distribution pipe 6 through the branch pipe 9.

[0020] like Figure 3 As shown, the branch pipe 9 is arranged inside the dispersion cone 8, and the outlet end of the water distribution pipe 6 extends into the dispersion cone 8. The dispersion cone 8 plays a protective role in preventing the branch pipe 9 from being damaged.

[0021] like Figure 1 As shown, the dispersed water distributor 5 is fixed on the frame of the material conveyor belt 2 through a mounting frame, and the top of the dispersed water distributor 5 is facing the coal dropping point of the material conveyor belt 1 discharge port.

[0022] like Figure 1 As shown, the moisture detection control system includes a moisture detector 3 installed on the upper part of the material conveyor belt 2. The moisture detector 3 uses a line microwave moisture tester for non-contact measurement, which can automatically, quickly and accurately measure. The moisture detector 3 is electrically connected to the PLC controller 4, and the PLC controller 4 is electrically connected to the control valve 7.

[0023] The implementation principle of an automatic water distribution system for bulk materials in the embodiment of the present application is as follows:

[0024] When the bulk coal is transferred from the material conveyor belt 1 to the material transfer belt 2, it will fall from the end outlet of the material conveyor belt 1 onto the top of the disperser 5, and will be evenly dispersed from top to bottom along the conical surface of the dispersion cone 8 of the disperser 5, and finally fall onto the material transfer belt 2 for transportation. In this way, the thickness of the bulk material dispersed on the surface of the dispersion cone 8 is relatively thin, which is convenient for the uniformity of water distribution in the later stage.

[0025] At the same time, the moisture detector 3 of the moisture control system will transmit the moisture data of the coal material transported on the material transfer belt 2 to the PLC controller 4 in real time. When the detected moisture content is lower than the set value of the PLC controller 4 (moisture content 10%), the PLC controller 4 controls to increase the opening of the control valve 7 of the water distribution pipe 6 to increase the water supply flow rate. The water supply with increased flow rate enters the various nozzles 11 of the dispersion cone 8 from the water distribution pipe 6 along the various branches 9, and is sprayed from the multiple nozzles 11 on the conical surface of the dispersion cone 8 to wet the thinner coal material passing through the dispersion cone 8. In this way, the coal material water distribution is more uniform, and the data detected by the subsequent moisture detector 3 is more accurate. When the detected moisture content is higher than the set value of the PLC controller 4, the reverse control control valve 7 reduces the valve opening and reduces the water supply flow rate, thereby achieving the overall content rate of the bulk coal material to be kept within a relatively precise numerical requirement.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic water distribution system for bulk materials, comprising a material conveyor belt (1), characterized in that: A material transfer belt (2) is overlapped at the discharge end of the material conveyor belt (1), and a dispersed water distributor (5) is installed at the overlap of the material transfer belt (2) and the material conveyor belt (1). The dispersed water distributor (5) supplies water through a water distribution pipe (6), and a control valve (7) is installed on the water distribution pipe (6). The control valve (7) controls the flow rate through a moisture detection control system.

2. The automatic water distribution system for bulk materials according to claim 1, characterized in that: The dispersed water distributor (5) comprises an umbrella-shaped dispersion cone (8), a plurality of mounting holes (10) are formed in a ring shape on the dispersion cone (8), a nozzle (11) is embedded in the mounting hole (10), and the nozzle (11) is connected and fixed to the water distribution pipe (6) through a branch pipe (9).

3. The automatic water distribution system for bulk materials according to claim 2, characterized in that: The branch pipe (9) is arranged inside the dispersion cone (8), and the outlet end of the water distribution pipe (6) extends to the inside of the dispersion cone (8).

4. The automatic water distribution system for bulk materials according to claim 2, characterized in that: The dispersed water distributor (5) is fixed on the frame of the material conveyor belt (2) through a mounting frame, and the top of the dispersed water distributor (5) faces the coal drop point of the material conveyor belt (1) outlet.

5. The automatic water distribution system for bulk materials according to claim 1, characterized in that: The moisture detection control system comprises a moisture detector (3) installed on the upper part of the material conveying belt (2); the moisture detector (3) is electrically connected to a PLC controller (4); and the PLC controller (4) is electrically connected to a control valve (7).

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