A coal slime dewatering device for coal processing

Abstract

This utility model discloses a coal slime dewatering device for coal processing, relating to the field of coal slime dewatering and separation technology. The utility model includes a conveying assembly and a drying assembly. The conveying assembly includes a conveyor frame, a conveyor belt, and a sponge filter belt. The conveyor belt is sleeved between two vertical plates on both sides of the conveyor frame. The drive shaft of the conveyor belt is connected to the output shaft of a motor via a connecting belt. The sponge filter belt is fixedly sleeved on the outside of the conveyor belt. The drying assembly is fixedly installed on the outside of the conveyor frame, with its air outlet penetrating through the side plate of the conveyor frame. This utility model works by pouring coal slime onto the sponge filter belt, which absorbs the moisture seeping from the coal slime, transforming it from a slurry state into coal slime blocks, facilitating drying and controlling the moisture content. The drying assembly dries the coal slime on the sponge filter belt, controlling the hot air temperature and wind speed of the drying assembly to control the degree of drying, ensuring the moisture content of the dewatered coal slime meets the actual requirements.

Description

Technical Field

[0001] This utility model belongs to the field of coal slime dewatering and separation technology, and in particular relates to a coal slime dewatering device for coal processing. Background Technology

[0002] After raw coal is mined, it first needs to be washed with water to remove dust, impurities, and harmful substances. The washed coal slime then needs to be dehydrated to bring the water content to between 20% and 30%. The specific moisture content of the raw coal is usually determined based on actual needs during dehydration to prevent the coal from sticking to the conveyor belt during transportation, while also preventing the coal slime from becoming moldy due to excessive moisture. Therefore, too much or too little dehydration of the coal slime is detrimental to its transportation and storage.

[0003] To address these issues, we provide a coal slime dewatering device for coal processing. Utility Model Content

[0004] The purpose of this invention is to provide a coal slime dewatering device for coal processing. A conveyor belt is rotatably installed within a conveyor frame in a conveying assembly, and a sponge filter belt is fixedly sleeved on the outside of the conveyor belt. Coal slime is poured onto the sponge filter belt, which absorbs the water seeping from the coal slime, transforming it from a slurry state into coal slime blocks, thus facilitating drying and controlling the moisture content. A drying assembly is installed on one side of the conveyor frame to dry the coal slime on the sponge filter belt. By controlling the hot air temperature and wind speed of the drying assembly, the degree of drying of the coal slime is controlled, ensuring that the moisture content of the dewatered coal slime meets the actual requirements.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a coal slime dewatering device for coal processing, including a conveying component and a drying component. The conveying component includes a conveyor frame, a conveyor belt, and a sponge filter belt. The conveyor frame is a U-shaped trough structure with an upward opening. The conveyor belt is sleeved between the vertical plates on both sides of the conveyor frame. The drive shaft of the conveyor belt is connected to the output shaft of the motor through a sleeve belt. The sponge filter belt is fixedly sleeved on the outside of the conveyor belt. The drying component is fixedly installed on the outside of the conveyor frame, and its air outlet end passes through the side plate of the conveyor frame. The drying component is above the surface of the sponge filter belt.

[0007] The present invention is further configured such that a winding shaft is rotatably installed inside the conveyor frame at the lower end of the conveyor belt surface, and squeezing shafts are rotatably installed on both sides of the winding shaft. The sponge filter belt is wound around the outside of the two squeezing shafts and the winding shaft, and the distance between the squeezing shaft and the winding shaft is less than the thickness of the sponge filter belt.

[0008] The present invention is further configured such that a squeezing cylinder is fixedly sleeved on the outside of the squeezing shaft, the squeezing cylinder having a hollow structure and a set of water-permeable holes arrayed on its outer side.

[0009] The present invention is further configured such that a pressure transfer belt is sleeved and installed inside the conveyor frame above the sponge filter belt, and a gap is left between the lower surface of the pressure transfer belt and the upper surface of the sponge filter belt, and a set of water-permeable holes are opened on the surface of the pressure transfer belt.

[0010] The present invention is further configured such that the drying assembly includes an air inlet duct cover, a set of fans and an electric heating wire frame. The air outlet end of the air inlet duct cover passes through the side plate of the conveyor frame and is fixedly connected to the conveyor frame. A fan frame is fixedly installed on the outside of the fan set. The fan frame is fixedly installed inside the air inlet duct of the air inlet duct cover. A set of electric heating wires is connected inside the electric heating wire frame. The electric heating wire frame is fixedly installed inside the air inlet duct cover.

[0011] The present invention is further configured such that the connection position of the air outlet end of the air inlet duct cover is located on the side plate of the conveyor frame between the upper and lower belt surfaces of the pressure conveyor belt.

[0012] The present invention is further configured such that a filter mesh sleeve is fixedly sleeved on the outside of the pressure conveyor belt, and the belt surface of the pressure conveyor belt gradually slopes downward from the beginning of the conveyor belt to the end of the conveyor belt.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model involves rotating and installing a conveyor belt inside the conveyor frame of the conveyor assembly, and fixing a sponge filter belt to the outside of the conveyor belt. Coal slurry is poured onto the sponge filter belt, which absorbs the water seeping out of the coal slurry, turning the coal slurry from a slurry state into coal slurry blocks, thereby facilitating drying and controlling the moisture content in the coal slurry.

[0015] 2. This utility model installs a drying component on one side of the conveyor frame, which dries the coal slime on the sponge filter belt. By controlling the hot air temperature and wind speed of the drying component, the degree of drying of the coal slime can be controlled, so that the moisture content of the dehydrated coal slime meets the actual requirements.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a coal slime dewatering device for coal processing.

[0019] Figure 2 This is a front cross-sectional view of the conveyor component.

[0020] Figure 3 This is an exploded view of the sponge filter belt and the squeezing shaft.

[0021] Figure 4 This is an exploded view of the present invention.

[0022] Figure 5 This is an exploded view of the downward-pressurized conveyor belt and the filter screen sleeve.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Conveying assembly, 101-Conveying frame, 102-Conveying belt, 102a-Wrapping shaft, 102b-Squeezing shaft, 102b-1-Squeezing cylinder, 103-Sponge filter belt, 104-Pressing transfer belt, 104a-Filter screen sleeve, 2-Drying assembly, 201-Air inlet duct cover, 202-Fan, 202a-Fan frame, 203-Heating wire frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figures 1 to 3 This utility model relates to a coal slime dewatering device for coal processing, comprising a conveying assembly 1 and a drying assembly 2. The conveying assembly 1 includes a conveyor frame 101, a conveyor belt 102, and a sponge filter belt 103. The conveyor belt 102 is rotatably installed inside the conveyor frame 101 in the conveying assembly 1, and the sponge filter belt 103 is fixedly sleeved on the outside of the conveyor belt 102. Coal slime is poured onto the sponge filter belt 103, and the sponge filter belt 103 absorbs the water seeping out of the coal slime, turning the coal slime from a slurry state into coal slime blocks, thereby facilitating drying and controlling the moisture content in the coal slime. The drying assembly 2 is installed on one side of the conveyor frame 101, and the drying assembly 2 dries the coal slime on the sponge filter belt 103. By controlling the hot air temperature and wind speed of the drying assembly 2, the degree of drying of the coal slime is controlled, so that the moisture content of the dewatered coal slime meets the actual requirements.

[0028] Specifically, the conveyor frame 101 is a U-shaped trough structure with an upward opening. The conveyor belt 102 is sleeved between the vertical plates on both sides of the conveyor frame 101. The drive shaft of the conveyor belt 102 is connected to the output shaft of the motor through a sleeve belt. The sponge filter belt 103 is fixedly sleeved on the outside of the conveyor belt 102. The drying component 2 is fixedly installed on the outside of the conveyor frame 101 and its air outlet penetrates through the side plate of the conveyor frame 101. The drying component 2 is above the surface of the sponge filter belt 103.

[0029] Furthermore, a winding shaft 102a is rotatably mounted on the lower end of the conveyor belt 102 inside the conveyor frame 101. Squeezing shafts 102b are rotatably mounted on both sides of the winding shaft 102a on the conveyor frame 101. The sponge filter belt 103 is wound around the outside of the two squeezing shafts 102b and the winding shaft 102a. When the conveyor belt 102 rotates, the sponge filter belt 103 is squeezed by the two squeezing shafts 102b and the winding shaft 102a, so that the water in the sponge filter belt 103 is squeezed out. The distance between the squeezing shaft 102b and the winding shaft 102a is less than the thickness of the sponge filter belt 103.

[0030] Furthermore, a squeezing cylinder 102b-1 is fixedly sleeved on the outside of the squeezing shaft 102b. The squeezing cylinder 102b-1 has a hollow structure and a set of water-permeable holes are arranged on its outer side. The squeezing cylinder 102b-1 squeezes the sponge filter belt 103 and causes the water in the sponge filter belt 103 to be discharged from the water-permeable holes on the outside of the squeezing cylinder 102b-1.

[0031] Furthermore, a downward pressure conveyor belt 104 is sleeved and installed inside the conveyor frame 101 above the sponge filter belt 103. A gap is left between the lower surface of the downward pressure conveyor belt 104 and the upper surface of the sponge filter belt 103. A set of water-permeable holes are opened on the surface of the downward pressure conveyor belt 104 so that the downward pressure conveyor belt 104 squeezes the coal slime downward.

[0032] The operation process in this embodiment is as follows:

[0033] Coal slurry is placed on the sponge filter belt 103. The motor drives the conveyor belt 102 to rotate, causing the sponge filter belt 103 to transport the coal slurry forward. At the same time, the sponge filter belt 103 absorbs the water seeping out of the coal slurry. Then, the drying component 2 dries the coal slurry. After absorbing the water, the sponge filter belt 103 is squeezed by the squeezing cylinder 102b-1 and the winding shaft 102a under the rotation of the conveyor belt 102, thereby squeezing out the water from the sponge filter belt 103 and ensuring that the sponge filter belt 103 remains dry when it is conveyed to the top by the conveyor belt 102.

[0034] Example 2

[0035] Please see Figures 4 to 5Based on Example 1, the drying assembly 2 includes an air inlet duct cover 201, a set of fans 202 and an electric heating wire frame 203. The fans 202 blow air into the air inlet duct cover 201 and the electric heating wire frame 203 heats the air, so that the hot air dries the coal slime.

[0036] Specifically, the air outlet of the air inlet duct cover 201 passes through the side plate of the conveyor frame 101 and is fixedly connected to the conveyor frame 101. A fan frame 202a is fixedly installed on the outside of the fan 202 group. The fan frame 202a is fixedly installed inside the air inlet duct of the air inlet duct cover 201. A set of heating wires is connected inside the heating wire frame 203. The heating wire frame 203 is fixedly installed inside the air inlet duct cover 201.

[0037] Furthermore, the air outlet of the air inlet cover 201 is connected to the side plate of the conveyor frame 101 between the upper and lower belt surfaces of the downward pressure conveyor belt 104, so that hot air passes through the water permeable holes on the belt surface of the downward pressure conveyor belt 104 and dries the coal slime.

[0038] Furthermore, a filter screen sleeve 104a is fixedly sleeved on the outside of the downward pressure conveyor belt 104. The belt surface of the downward pressure conveyor belt 104 gradually slopes downward from the initial conveying end of the conveyor belt 102 to the end conveying end of the conveyor belt 102. The filter screen sleeve 104a prevents the downward pressure conveyor belt 104 from carrying away the coal slurry. At the same time, the gradual downward slope of the conveyor belt 102 can make the filter screen sleeve 104a squeeze the coal slurry, thereby squeezing out the water in the coal slurry, which is convenient to be evaporated and blown out by hot air.

[0039] The operation process in this embodiment is as follows:

[0040] The blower 202 blows air into the air inlet duct cover 201, and the heating wire frame 203 heats the air. The hot air is blown into the space between the upper and lower sides of the downward conveyor belt 104. The filter mesh sleeve 104a fitted on the outside of the downward conveyor belt 104 squeezes the coal slime. At the same time, the hot air blows the squeezed-out water out from the other side of the conveyor frame 102.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A slime dewatering device for coal processing, comprising a conveying assembly (1) and a drying assembly (2), characterized in that: The conveying assembly (1) includes a conveyor frame (101), a conveyor belt (102), and a sponge filter belt (103). The conveyor frame (101) is a U-shaped trough structure with an upward opening. The conveyor belt (102) is sleeved between the vertical plates on both sides of the conveyor frame (101). The drive shaft of the conveyor belt (102) is connected to the output shaft of the motor via a sleeve belt. The sponge filter belt (103) is fixedly sleeved on the outside of the conveyor belt (102). The drying assembly (2) is fixedly installed on the outside of the conveyor frame (101) and its air outlet penetrates through the side plate of the conveyor frame (101). The drying assembly (2) is above the surface of the sponge filter belt (103).

2. The coal slime dewatering device for coal processing according to claim 1, characterized in that: A winding shaft (102a) is rotatably mounted on the lower end of the conveyor belt (102) inside the conveyor frame (101). Squeezing shafts (102b) are rotatably mounted on both sides of the winding shaft (102a) of the conveyor frame (101). The sponge filter belt (103) is wound around the outside of the two squeezing shafts (102b) and the winding shaft (102a). The distance between the squeezing shaft (102b) and the winding shaft (102a) is less than the thickness of the sponge filter belt (103).

3. The coal slurry dewatering device for coal processing according to claim 2, characterized in that: The squeezing shaft (102b) is fixedly sleeved with a squeezing cylinder (102b-1) on the outside. The squeezing cylinder (102b-1) is a hollow structure and has a set of water-permeable holes arranged in an array on the outside.

4. The coal slurry dewatering device for coal processing according to claim 1, characterized in that: The conveyor frame (101) is fitted with a pressure transfer belt (104) above the sponge filter belt (103). There is a gap between the lower surface of the pressure transfer belt (104) and the upper surface of the sponge filter belt (103). A set of water-permeable holes are opened on the surface of the pressure transfer belt (104).

5. A coal slime dewatering device for coal processing according to claim 4, characterized in that: The drying assembly (2) includes an air inlet duct cover (201), a set of fans (202), and a heating wire frame (203). The air outlet end of the air inlet duct cover (201) passes through the side plate of the conveyor frame (101) and is fixedly connected to the conveyor frame (101). A fan frame (202a) is fixedly installed on the outside of the fan (202) set. The fan frame (202a) is fixedly installed inside the air inlet duct of the air inlet duct cover (201). A set of heating wires is connected inside the heating wire frame (203). The heating wire frame (203) is fixedly installed inside the air inlet duct cover (201).

6. The coal slurry dewatering device for coal processing according to claim 5, characterized in that: The connection position of the air outlet end of the air inlet duct cover (201) is located on the side plate of the conveyor frame (101) between the upper and lower belt surfaces of the pressure conveyor belt (104).

7. The coal slurry dewatering device for coal processing according to claim 6, characterized in that: A filter mesh sleeve (104a) is fixedly sleeved on the outside of the pressure transfer belt (104), and the belt surface of the pressure transfer belt (104) gradually slopes downward from the initial conveying end of the conveyor belt (102) to the end conveying end of the conveyor belt (102).

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