Sludge full-drying treatment device

Abstract

The invention discloses a sludge full-drying treatment device which comprises a base, the base is connected with a heat preservation box body, and a first belt conveyor, a second belt conveyor, a crushing structure and a belt conveying heating structure are sequentially arranged in the heat preservation box body from high to low. The first belt conveyor, the second belt conveyor, the crushing structure and the belt conveying and heating structure are all in transmission connection with the transmission structure, an air drying structure is arranged on one side of the heat preservation box body, and a condensation structure is arranged at the top of the heat preservation box body. According to the sludge full-drying treatment device provided by the invention, crushed sludge particles are continuously rubbed, rolled and transferred on the surface of a belt type conveying and heating structure with a vibration function and high-temperature heating, comprehensive dehydration is realized by utilizing a synergistic effect of heat conduction and mechanical movement, and meanwhile, a multi-stage treatment process is designed through a space superposition process; the treatment efficiency is guaranteed, meanwhile, linkage is achieved, the cost is reduced, the occupied area is reduced, and finally full-dried sludge is produced.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and particularly to a sludge complete drying treatment device. Background Art

[0002] In a patent application with the publication number CN202210858347.4, a sludge drying device is disclosed, which includes: a first heat exchange device, a heating unit, and a conveying mesh belt. The first air inlet of the first heat exchange device is adapted to introduce external air. The air inlet end of the heating unit is communicated with the first air outlet of the first heat exchange device, and the heating unit is provided with a heat storage device. The conveying mesh belt is provided with a first air distribution device and a first air collection device, and the conveying mesh belt is adapted to convey the sludge to be treated. The first air distribution device, the air inlet end of the first air distribution device is communicated with the air outlet end of the heating device, and is used to blow the heated air to the sludge to be treated on the conveyor belt. By setting the heat storage device, the heating unit can store the generated heat during the valley electricity period, stop the power-to-heat conversion during the peak electricity period, and use the stored heat energy to heat the fresh air after heating and the steam after condensation and dehumidification, effectively reducing the operating cost.

[0003] In the prior art including the above-mentioned patent, for the existing sludge to be completely dried, it needs to be treated in multiple stages. The existing sludge complete drying treatment usually requires multiple process flows, including a pretreatment stage - sludge thickening, reducing the volume of the sludge by gravity settlement or mechanical means, and at the same time adding a flocculant (such as cationic / anionic polymer) to improve the dehydration performance and destroy the colloidal stability. Subsequently, belt pressing filtration, plate and frame pressing filtration or centrifugal dehydration need to be adopted to reduce the water content to 80% - 85%. Then, the bound water is removed by heating evaporation using hot air at about 100°C or contact heat transfer, and the water content can be reduced to 10% - 15%. However, the above methods still cannot achieve complete drying treatment, and the multi-stage treatment method also requires multiple power sources to support, with large energy consumption and large floor area. Therefore, optimizing the linkage of the multi-stage transmission structure of sludge treatment to improve efficiency, reduce costs, and how to better improve the complete drying and dehydration of sludge are key technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a sludge complete drying treatment device to solve the technical problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A sludge full-drying treatment device, including a base, the base is connected to a heat preservation box body, inside the heat preservation box body, a first belt conveyor, a second belt conveyor, a crushing structure and a belt conveying heating structure are arranged from high to low in sequence, the first belt conveyor, the second belt conveyor, the crushing structure and the belt conveying heating structure are all in transmission connection with a transmission structure, a wind drying structure is arranged on one side of the heat preservation box body, and a condensation structure is arranged on the top of the heat preservation box body.

[0006] Further, the belt conveying heating structure includes a third belt conveyor and a heating plate, diamond patterns are formed on the surface of the heating plate, the outer ring of the belt of the third belt conveyor is connected with a plurality of push plates arranged at equal intervals, the push plates are in sliding contact with the surface of the heating plate, the bottom of the heating plate is connected with symmetrically arranged push blocks, the opposite ends of the two push blocks are connected with one ends of vibration elastic members arranged at equal intervals, the other ends of the vibration elastic members are connected with fixed blocks, the fixed blocks are connected with the base, the two push blocks at one end of the heating plate are connected with a vibration block, the vibration block is in sliding contact with a through groove formed in the heat preservation box body, the vibration block is in contact with a cam, and the cam is in transmission connection with the third belt conveyor.

[0007] Further, the bottom of the heating plate is rotatably connected with a plurality of rotation rollers arranged at equal intervals, and the rotation rollers are in contact with the surface of the base.

[0008] Further, the transmission structure includes a driving motor and a plurality of belt pulleys, the driving motor is in transmission connection with one of the belt pulleys, the plurality of belt pulleys are respectively in transmission connection with the first belt conveyor, the second belt conveyor, the crushing structure and the third belt conveyor, and the plurality of belt pulleys are in transmission connection with a transmission belt.

[0009] Further, the crushing structure includes symmetrically arranged crushing rollers, one end of the crushing rollers is in transmission connection with meshing gears, and one of the meshing gears is in transmission connection with a belt pulley.

[0010] Further, the wind drying structure includes a large gear, the large gear is in transmission connection with the second belt conveyor, the large gear is in transmission connection with a small gear, the small gear is in transmission connection with a blower, the air outlet end of the blower is connected with an air duct, a heating element is arranged inside the air duct, air outlet openings are formed at the lower end of the outer ring of the air duct, and the air outlet openings are communicated with the inside of the heat preservation box body.

[0011] Further, the condensation structure includes a condenser, a water collecting tank is arranged at the lower end of the condenser, and the bottom of the water collecting tank is inclined towards one corner.

[0012] Further, the first belt conveyor, the second belt conveyor and the water collecting tank are arranged in a staggered manner, and a ceramic filter plate is arranged on one side of the water collecting tank.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The sludge full-drying treatment device is reasonable and has the following advantages: (1) Through the linkage transmission structure, the first belt conveyor, the second belt conveyor, the crushing mechanism, the belt conveyor heating structure and the air drying structure are integrated and linked to form a continuous treatment closed loop in the insulation box. At the same time, the power is shared to reduce energy consumption and cost. During the transmission process of the filter-pressed sludge through the first belt conveyor and the second belt conveyor, the air drying structure performs hot air drying to achieve surface dehydration. Subsequently, the crushing structure pulverizes the surface-dried sludge to promote the uniform distribution of moisture inside and outside. Finally, the belt conveyor heating structure with vibration function and high-temperature heating enables the crushed sludge particles to continuously rub, roll and transfer, and realizes comprehensive dehydration through the synergistic effect of heat conduction and mechanical movement. Moreover, the multi-stage treatment process designs the process in a superimposed manner in space, reducing the floor area while ensuring the treatment efficiency, and finally producing fully dried sludge. (2) The third belt conveyor is driven to operate through the transmission structure, synchronously driving the cam mechanism to rotate, and driving the vibration block, the push block and the heating plate to move in coordination. The push block makes the crushed sludge on the surface of the heating plate evenly distributed and blended through the telescopic vibration of the vibration elastic part. The diamond pattern on the surface of the heating plate increases the friction coefficient to promote the full contact of the sludge with the high-temperature surface to achieve rapid full drying, and accelerates the blending distribution of the sludge moisture inside and outside. At the same time, the push plate on the surface of the conveyor synchronously scrapes and discharges the dried sludge from the surface of the heating plate during the process of transporting the sludge, realizing efficient full-drying treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the exploded view of the present invention; Figure 3 is the structural schematic diagram of the first belt conveyor and the second belt conveyor in the present invention; Figure 4 is the structural schematic diagram of the belt conveyor heating structure in the present invention; Figure 5 is the bottom structural schematic diagram of the belt conveyor heating structure in the present invention; Figure 6 is Figure 4 the enlarged view at A in Figure 7 is the structural schematic diagram of the transmission structure in the present invention; Figure 8 is the structural schematic diagram of the crushing structure in the present invention; Figure 9 is the partial structural schematic diagram of the air drying structure in the present invention; Figure 10 is the structural schematic diagram of the water collecting tank in the present invention.

[0015] In the figure: 1-base, 2-insulation box, 3-air drying structure, 31-large gear, 32-small gear, 33-fan, 34-air duct, 4-condensation structure, 5-condenser, 51-water collecting tank, 6-first belt conveyor, 7-second belt conveyor, 8-crushing structure, 81-crushing roller, 82-meshing gear, 9-belt conveying heating structure, 91-third belt conveyor, 911-push plate, 92-heating plate, 93-push block, 94-vibrating elastic member, 95-fixed block, 96-rotating roller, 97-vibrating block, 98-cam, 10-transmission structure, 101-drive motor, 102-pulley, 103-transmission belt. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figures 1-10 , the present invention provides a technical solution: a sludge full drying treatment device, including a base 1, the base 1 is connected to the insulation box 2, the insulation box 2 is sequentially provided with a first belt conveyor 6, a second belt conveyor 7, a crushing structure 8 and a belt conveying heating structure 9 from high to low, the first belt conveyor 6, the second belt conveyor 7, the crushing structure 8 and the belt conveying heating structure 9 are all connected to the transmission structure 10, a wind drying structure 3 is provided on one side of the insulation box 2, and a condensing structure 4 is provided on the top of the insulation box 2. The sludge full drying treatment device is integrated with the first belt conveyor 6, the second belt conveyor 7, the crushing mechanism, the belt conveying heating structure 9 and the wind through the linkage transmission structure 10. The drying structure 3 forms a continuous processing closed loop in the heat-insulating box 2, while power sharing reduces energy consumption and costs. The filter press sludge is transported by the first belt conveyor 6 and the second belt conveyor 7. The air drying structure 3 implements hot air drying to achieve surface dehydration. Then the crushing structure 8 crushes the surface dried sludge to promote uniform distribution of moisture in the inner and outer layers. Finally, the belt conveying and heating structure 9 with vibration function and high-temperature heating is used to allow the crushed sludge particles to continue to rub and roll for transportation, and the synergistic effect of heat conduction and mechanical movement is used to achieve comprehensive dehydration. The multi-stage treatment process is designed through spatial superposition of processes. While ensuring treatment efficiency, the floor space is reduced, and finally fully dried sludge is produced.

[0018] The belt conveyor heating structure 9 includes a third belt conveyor 91 and a heating plate 92. The surface of the heating plate 92 is provided with diamond patterns. The outer ring of the belt of the third belt conveyor 91 is connected to a plurality of equally spaced push plates 911. The push plates 911 are in sliding contact with the surface of the heating plate 92. The bottom of the heating plate 92 is connected to symmetrically arranged push blocks 93. The opposite ends of the two push blocks 93 are connected to one end of equally spaced vibration elastic members 94. The other end of the vibration elastic members 94 is connected to a fixed block 95. The fixed block 95 is connected to the base 1. The two push blocks 93 at one end of the heating plate 92 are connected to a vibration block 97. The vibration block 97 is in sliding contact with a through groove provided in the heat preservation box body 2. The vibration block 97 is in contact with a cam 98. The cam 98 is in transmission connection with the third belt conveyor 91. The third belt conveyor 91 is driven to operate through a transmission structure 10, synchronously driving the rotation of the cam 98 mechanism, driving the coordinated movement of the vibration block 97, the push block 93 and the heating plate 92. The push block 93 makes the crushed sludge on the surface of the heating plate 92 evenly distributed and blended through the telescopic vibration of the vibration elastic member 94. The diamond patterns on the surface of the heating plate 92 increase the friction coefficient, promoting the full contact of the sludge with the high-temperature surface to achieve rapid full drying, and accelerating the blending and distribution of the moisture of the inner and outer layers of the sludge. At the same time, the push plate 911 on the surface of the conveyor synchronously scrapes and discharges the dried sludge from the surface of the heating plate 92 during the process of transporting the sludge, realizing efficient full drying treatment. It should be noted that the push plate 991 blocks the downward movement of the hot air of the wind drying structure 3.

[0019] The bottom of the heating plate 92 is rotatably connected to a plurality of equally spaced rotating rollers 96, and the rotating rollers 96 are in contact with the surface of the base 1.

[0020] The transmission structure 10 includes a driving motor 101 and a plurality of belt pulleys 102. The driving motor 101 is in transmission connection with one of the belt pulleys 102. The plurality of belt pulleys 102 are respectively in transmission connection with the first belt conveyor 6, the second belt conveyor 7, the crushing structure 8 and the third belt conveyor 91. The plurality of belt pulleys 102 are in transmission connection with a transmission belt 103. Through the transmission connection of the plurality of belt pulleys with the plurality of structures and the transmission through a transmission belt 103, linkage is realized, so as to share power, reduce energy consumption and reduce costs.

[0021] The crushing structure 8 includes symmetrically arranged crushing rollers 81. One end of the crushing roller 81 is in transmission connection with a meshing gear 82. One of the meshing gears 82 is in transmission connection with a belt pulley 102. Through the crushing roller 81, the surface dried sludge can be crushed, promoting the uniform distribution of the moisture of the inner and outer layers and improving the further drying efficiency of the sludge by the next belt conveyor heating structure 9.

[0022] The air drying structure 3 includes a large gear 31. The large gear 31 is drivingly connected to the second belt conveyor 7, the large gear 31 is drivingly connected to a small gear 32, the small gear 32 is drivingly connected to a fan 33, the air outlet end of the fan 33 is connected to an air duct 34, a heating element is arranged inside the air duct 34, air outlets are formed at the lower end of the outer ring of the air duct 34, and the air outlets are communicated with the inside of the heat preservation box body 2. The heating element can heat the air. At the same time, the second belt conveyor 7 drives the large gear 31 to share power. The large gear 31 and the small gear 32 generate a differential speed to accelerate the rotation of the fan 33 to bring in hot air to dry the sludge.

[0023] The condensation structure 4 includes a condenser 5. A water collecting tank 51 is arranged at the lower end of the condenser 5. The bottom of the water collecting tank 51 inclines towards one corner. Since the hot air dries the water-containing sludge, the moisture will be brought into the hot air. Condensation water is formed through condensation by the temperature difference between the condenser 5 and the hot air. The condensation water falls into the water collecting tank 51 and can flow out from one position through the inclination for drainage. At the same time, a protective cover is arranged at the upper end of the condenser 5 to ensure the stability of the external humidity.

[0024] The first belt conveyor 6, the second belt conveyor 7, and the water collecting tank 51 are arranged in a staggered manner. A ceramic filter plate is arranged on one side of the water collecting tank 51. The ceramic filter plate can filter out tiny impurities to ensure the protection of the condenser 5.

[0025] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A sludge full-drying treatment device, comprising a base (1), characterized in that: The base (1) is connected to the heat preservation box body (2). Inside the heat preservation box body (2), a first belt conveyor (6), a second belt conveyor (7), a crushing structure (8), and a belt conveyor heating structure (9) are arranged in sequence from high to low. The first belt conveyor (6), the second belt conveyor (7), the crushing structure (8), and the belt conveyor heating structure (9) are all in transmission connection with a transmission structure (10). A wind drying structure (3) is arranged on one side of the heat preservation box body (2), and a condensation structure (4) is arranged on the top of the heat preservation box body (2).

2. The sludge complete drying treatment device according to claim 1, characterized in that: The belt conveyor heating structure (9) includes a third belt conveyor (91) and a heating plate (92). The surface of the heating plate (92) is provided with diamond patterns. The outer ring of the belt of the third belt conveyor (91) is connected with a plurality of push plates (911) arranged at equal intervals. The push plates (911) are in sliding contact with the surface of the heating plate (92). The bottom of the heating plate (92) is connected with symmetrically arranged push blocks (93). The opposite ends of the two push blocks (93) are connected with one end of vibration elastic members (94) arranged at equal intervals. The other end of the vibration elastic members (94) is connected with a fixed block (95). The fixed block (95) is connected with the base (1). The two push blocks (93) at one end of the heating plate (92) are connected with a vibration block (97). The vibration block (97) is in sliding contact with a through groove opened in the heat preservation box body (2). The vibration block (97) is in contact with a cam (98). The cam (98) is in transmission connection with the third belt conveyor (91).

3. A sludge total drying treatment device according to claim 2, characterized in that: The bottom of the heating plate (92) is rotationally connected with a plurality of rotation rollers (96) arranged at equal intervals. The rotation rollers (96) are in contact with the surface of the base (1).

4. A sludge full-drying treatment device according to claim 1, characterized in that: The transmission structure (10) includes a driving motor (101) and a plurality of belt pulleys (102). The driving motor (101) is in transmission connection with one of the belt pulleys (102). The plurality of belt pulleys (102) are respectively in transmission connection with the first belt conveyor (6), the second belt conveyor (7), the crushing structure (8), and the third belt conveyor (91). The plurality of belt pulleys (102) are in transmission connection with a transmission belt (103).

5. The sludge complete drying treatment device according to claim 4, characterized in that: The crushing structure (8) includes symmetrically arranged crushing rollers (81). One end of the crushing roller (81) is in transmission connection with a meshing gear (82). One of the meshing gears (82) is in transmission connection with one of the belt pulleys (102).

6. The sludge full-drying treatment device according to claim 1, characterized in that: The wind drying structure (3) includes a large gear (31). The large gear (31) is in transmission connection with the second belt conveyor (7). The large gear (31) is in transmission connection with a small gear (32). The small gear (32) is in transmission connection with a blower (33). The air outlet end of the blower (33) is connected with an air duct (34). A heating element is arranged inside the air duct (34). An air outlet is opened at the lower end of the outer ring of the air duct (34). The air outlet is communicated with the inside of the heat preservation box body (2).

7. A sludge full-drying treatment device according to claim 1, characterized in that: The condensation structure (4) includes a condenser (5). A water collecting tank (51) is arranged at the lower end of the condenser (5). The bottom of the water collecting tank (51) inclines towards one corner.

8. A sludge full-drying treatment device according to claim 1, characterized in that: The first belt conveyor (6), the second belt conveyor (7), and the water collecting tank (51) are arranged staggeredly, and a ceramic filter plate is arranged on one side of the water collecting tank (51).

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