Intelligent dosing device of slime water thickener

Abstract

The utility model provides an intelligent dosing device of a slime water thickener. The intelligent dosing device comprises a water surface intelligent dosing mechanism located above the thickener, a medicament mixing and stirring unit and a dosing pump communicated with the bottom of the medicament mixing and stirring unit, and an outlet of the dosing pump is respectively communicated with a thickener feeding pipe and the water surface intelligent dosing mechanism through electromagnetic valves. In addition, the intelligent dosing device further comprises a turbidimeter, a defoaming unit and other structural characteristics. The intelligent dosing device has the advantages of being good in flocculating settling effect, high in intelligent degree and the like.

Description

Technical Field

[0001] This utility model relates to an intelligent dosing device, and more particularly to an intelligent dosing device for a coal slurry water thickener. Background Technology

[0002] A coal slurry thickener is a device specifically designed for treating coal slurry water. It is mainly used to concentrate and clarify coal slurry water so that it can be recycled and reused. It is widely used in coal preparation plants for coal slurry water treatment. The thickener produces clean circulating water through flocculation and sedimentation.

[0003] However, in actual field operations, problems such as high mud content in circulating water, excessive foam, and coarse runoff often occur. These problems are mainly caused by factors such as high mud content in raw coal making it difficult to settle, stirring of the thickener rake frame, and interference from the exhaust tail flow. This leads to turbidity in the clear water layer and overflow water of the thickener. At this time, simply increasing the dosage of flocculant cannot effectively solve the above problems, and increasing the dosage will also increase the difficulty of the subsequent filter press process.

[0004] Therefore, in response to the problems of high mud content, excessive foam, and coarse runoff in the circulating water of coal slurry thickeners, a timely and effective dosing method is needed to achieve the highest possible cleanliness of the circulating water and realize unmanned intelligent operation of the intelligent dosing device. Utility Model Content

[0005] The purpose of this utility model is to provide an intelligent dosing device for a coal slurry water thickener. The intelligent dosing device includes a water surface intelligent dosing mechanism located above the thickener, a chemical mixing and stirring unit, a dosing pump connected to the bottom of the chemical mixing and stirring unit, and the outlet of the dosing pump being connected to the feed pipe of the thickener and the water surface intelligent dosing mechanism respectively through a solenoid valve.

[0006] The intelligent dosing mechanism for water surface includes a rotating horizontal arm unit that rotates around the center of the thickener, a drive mechanism, and a control unit. One end of the rotating horizontal arm unit is connected to the drive mechanism located at the center of the thickener, and the other end is rolledly connected to the outer edge of the overflow trough of the thickener through a roller. The drive mechanism drives the rotating horizontal arm unit to rotate around the center of the thickener.

[0007] A dosing pipeline and multiple dosing nozzles evenly arranged below the dosing pipeline are also provided directly below the rotating horizontal arm unit. A turbidity meter fixed to the end of the rotating horizontal arm unit is also provided at the overflow trough of the concentrator.

[0008] Preferably, the rotating crossarm unit is further provided with a defoaming unit near the bubble baffle of the concentrator.

[0009] Preferably, the defoaming unit includes a water pump, a water spray hole, and a water pumping pipe inserted into the clear water layer of the concentrator.

[0010] Preferably, the number of intelligent dosing mechanisms on the water surface is multiple and they are arranged at equal angles.

[0011] Preferably, the dosing nozzle is a wide-angle nozzle.

[0012] Preferably, the turbidimeter includes a transmitter and a receiver.

[0013] Preferably, the orientation of the transmitting end is at a 90-degree right angle to the orientation of the receiving end.

[0014] The intelligent dosing device of this utility model coal slurry water thickener has many advantages, such as good flocculation and sedimentation effect and high degree of intelligence.

[0015] It should be understood that the foregoing general description and the subsequent detailed description are illustrative and explanatory, and should not be used as limitations on the content claimed by this utility model. Attached Figure Description

[0016] Referring to the accompanying drawings, further objects, functions, and advantages of this invention will be clarified through the following description of embodiments of this invention, wherein:

[0017] Figure 1 This schematic diagram illustrates the overall structure of the intelligent dosing device of this utility model.

[0018] Figure 2 This schematic diagram shows a top view of the intelligent dosing device of this utility model.

[0019] Figure 3 This schematic diagram illustrates the structure of the rotating horizontal arm unit of the intelligent dosing device of this invention.

[0020] Figure 4 The schematic diagram shows the arrangement of the turbidimeter in the intelligent dosing device of this utility model. Detailed Implementation

[0021] The objectives and functions of this invention, as well as the methods for achieving these objectives and functions, will be clarified by referring to exemplary embodiments. However, this invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The purpose of this specification is merely to help those skilled in the art to comprehensively understand the specific details of this invention.

[0022] In the following description, embodiments of the present invention will be illustrated with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar parts, or the same or similar steps.

[0023] Figure 1 The diagram schematically illustrates the intelligent dosing device 100 of the coal slurry thickener of this utility model. The intelligent dosing device 100 includes a surface intelligent dosing mechanism 1 located above the thickener 9, a reagent mixing and stirring unit 2, and a dosing pump 3 connected to the bottom of the reagent mixing and stirring unit 2. The outlet of the dosing pump 3 is connected to the thickener feed pipe 91 and the surface intelligent dosing mechanism 1 via a solenoid valve 4. This intelligent dosing device 100 can add flocculant to the thickener feed pipe 91 and can also directly add flocculant to the clear water layer of the thickener 9. By primarily adding flocculant through the feed pipe 91 and secondarily adding it through the clear water layer, the flocculation and sedimentation effect of the thickener 9 is better achieved.

[0024] like Figure 2 As shown, the intelligent dosing mechanism 1 for water surface includes a rotating horizontal arm unit 101 that rotates around the center of a thickener 9, a drive mechanism 102, and a control unit 103. One end of the rotating horizontal arm unit 101 is connected to the drive mechanism 102 located at the center 92 of the thickener, and the other end is rolledly connected to the outer edge of the thickener overflow trough 93 via a roller 104. The drive mechanism 102 further drives the rotating horizontal arm unit 101 to rotate around the center 92 of the thickener on the outer edge of the thickener overflow trough 93. Preferably, the drive mechanism 102 can also be located at the outer edge of the thickener overflow trough 93, thereby driving the rotating horizontal arm unit 101 to rotate around the center of the thickener 9.

[0025] like Figure 3 As shown, a dosing pipeline 105 and multiple dosing nozzles 106 evenly arranged below the dosing pipeline 105 are also provided directly below the rotating horizontal arm unit 101. A turbidity meter 5 fixed to the end of the rotating horizontal arm unit 101 is also provided at the overflow trough 93 of the thickener. Preferably, the dosing nozzles 106 are wide-angle nozzles, which spray flocculant onto the water surface at a small flow rate over a large area to achieve flocculation and sedimentation of fine coal slime and clay minerals that may exist in the clear water layer.

[0026] like Figure 4 As shown, the turbidimeter 5 includes a transmitter 51 and a receiver 52, with the transmitter 51 oriented at a 90-degree angle to the receiver 52. The transmitter 51 emits infrared light horizontally towards the overflow water of the concentrator 9, which is then scattered by the overflow water and captured by the receiver 52 positioned vertically. The turbidity of the overflow water is further calculated based on the intensity of the scattered light. Preferably, the position of the receiver 52 can be adjusted left or right to achieve the optimal position for receiving the scattered light.

[0027] More preferably, the rotating crossarm unit 101 is further provided with a defoaming unit 6 near the bubble baffle 94 of the thickener. The defoaming unit 6 includes a water pump 61, a water spray hole 62, and a water pumping pipe 63 inserted into the clear water layer of the thickener 9. Specifically, the water pump 61 draws water from the clear water layer through the water pumping pipe 63 and sprays it out from the water spray hole 62, thereby eliminating air bubbles or foam with particulate matter adhering to the surface of the clear water layer and blocked by the bubble baffle 94, thus reducing the amount of sludge or coarse particles entering the circulating water tank and ensuring the cleanliness of the circulating water.

[0028] More preferably, the above-mentioned intelligent dosing mechanism 1 on the water surface can be multiple and arranged at equal angles, such as three with an angle of 120 degrees, so as to achieve a more efficient dosing and defoaming effect.

[0029] In conclusion, the intelligent dosing device 100 of this utility model coal slurry water thickener creatively designs an intelligent surface dosing mechanism 1. When the turbidity meter 5 detects turbidity in the overflow water, the control unit 103 automatically initiates surface dosing. Specifically, the dosing flow rate can be selected based on the turbidity value. Simultaneously, the defoaming unit 6 can be activated and the dosage to the feed pipe 91 increased as needed, thereby improving the cleanliness of the clear water layer and circulating water. This intelligent dosing device 100 effectively solves the problem of coarse or sludge-laden circulating water, better adapting to the washing and processing of difficult-to-select coal. It boasts advantages such as good flocculation and sedimentation effect, simple structure, ingenious design, high circulating water cleanliness, and intelligent operation.

[0030] The accompanying drawings are schematic only and not to scale. Although the present invention has been described in conjunction with preferred embodiments, it should be understood that the scope of protection of the present invention is not limited to the embodiments described herein.

[0031] Other embodiments of the present invention will be readily conceived and understood by those skilled in the art in conjunction with the description and practice disclosed herein. The description and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are defined by the claims.

Claims

1. An intelligent dosing device for a coal slurry water thickener, the intelligent dosing device (100) comprising a water surface intelligent dosing mechanism (1) located above the thickener (9), a reagent mixing and stirring unit (2), a dosing pump (3) connected to the bottom of the reagent mixing and stirring unit (2), the outlet of the dosing pump (3) being connected to the thickener feed pipe (91) and the water surface intelligent dosing mechanism (1) respectively via a solenoid valve (4); wherein, The intelligent dosing mechanism (1) on the water surface includes a rotating horizontal arm unit (101) that rotates around the center of the thickener (9), a drive mechanism (102), and a control unit (103). One end of the rotating horizontal arm unit (101) is connected to the drive mechanism (102) located at the center (92) of the thickener, and the other end is rolledly connected to the outer edge of the overflow trough (93) of the thickener through a roller (104). The drive mechanism (102) drives the rotating horizontal arm unit (101) to rotate around the center (92) of the thickener. A dosing pipeline (105) and a plurality of dosing nozzles (106) evenly arranged below the dosing pipeline (105) are also provided directly below the rotating cross arm unit (101). A turbidity meter (5) fixed to the end of the rotating cross arm unit (101) is also provided at the overflow trough (93) of the concentrator.

2. The intelligent dosing device according to claim 1, characterized in that: The rotating cross arm unit (101) is also equipped with a defoaming unit (6) near the bubble baffle plate (94) of the concentrator.

3. The intelligent dosing device according to claim 2, characterized in that: The defoaming unit (6) includes a water pump (61), a water spray hole (62), and a water pumping pipe (63) inserted into the clear water layer of the concentrator (9).

4. The intelligent dosing device according to claim 3, characterized in that: The number of intelligent dosing mechanisms (1) on the water surface is multiple and they are arranged at equal angles.

5. The intelligent dosing device according to claim 4, characterized in that: The dosing nozzle (106) is a wide-angle nozzle.

6. The intelligent dosing device according to claim 5, characterized in that: The turbidimeter (5) includes a transmitter (51) and a receiver (52).

7. The intelligent dosing device according to claim 6, characterized in that: The orientation of the transmitter (51) is at a 90-degree right angle to the orientation of the receiver (52).

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