Drying mechanism for desulfurization and denitrification wastewater sludge

Abstract

The utility model relates to the technical field of sludge drying, and discloses a desulfurization and denitrification wastewater sludge drying mechanism which comprises a fixing frame, the top of the fixing frame is fixedly connected with a first conveying belt, the inner wall of the bottom of the fixing frame is fixedly connected with a second conveying belt, and the outer wall of the fixing frame is fixedly connected with a plurality of fixing blocks. The multiple fixing blocks at the top are fixedly connected with a first air outlet shell, the multiple fixing blocks at the bottom are fixedly connected with a second air outlet shell, and two brake motors are fixedly connected to the left side of the fixing frame. According to the sludge drying device, sludge raw materials are changed into a strip shape under the extrusion action and fall to the position above the first conveying belt, the first conveying belt drives strip-shaped sludge blocks to move, at the moment, the first air outlet shell on the upper portion dries the surfaces of the strip-shaped sludge blocks in an air mode, and when reaching the right end of the first conveying belt, the strip-shaped sludge blocks fall to the second conveying belt on the lower portion; and finally, the fully air-dried strip-shaped sludge blocks fall into a storage box, and the dryness of the sludge blocks reaches the storage standard through two times of air drying.

Description

TECHNICAL FIELD

[0001] The utility model relates to sludge drying technical field especially, relates to a drying mechanism of desulfurization and denitrification wastewater sludge. BACKGROUND

[0002] In industrial production and thermal power plant, in order to reduce the emission of sulfur oxide and nitrogen oxide in waste gas, will adopt desulfurization and denitrification process, in this process, will produce the wastewater containing a large amount of impurities, through a series of processing methods, adopt chemical precipitation, and the heavy metal ions and suspended solids in wastewater form precipitate, these precipitate substances form desulfurization and denitrification wastewater sludge after continuous accumulation.

[0003] Wet sludge contains a large amount of water, will increase the difficulty and cost of transportation and storage, so the sludge stored needs to be dried after treatment, to facilitate transportation and reuse, the sludge after drying treatment can be used as raw material for building materials, for producing cement, brick realizes the recycling of resources, at the same time, the volume of sludge after drying reduces, and it is convenient to fill in the landfill disposal, reduces the occupied space to landfill.

[0004] The existing sludge drying treatment method has hot drying method, through hot air, steam and other heat sources to heat sludge, makes water evaporate quickly, but the existing sludge drying device is difficult to guarantee the dryness requirement of sludge while improving work efficiency, and the dryness of sludge is not up to standard, which will increase transportation cost and risk, affect the storage environment, also will emit stench, influence surrounding air environment and the quality of life of residents. UTILITY MODEL CONTENT

[0005] In order to make up for the above insufficient, the utility model provides a drying mechanism of desulfurization and denitrification wastewater sludge, aims at improving the problem that high efficiency and sludge dryness cannot be achieved simultaneously when sludge is dried in prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a drying mechanism of desulfurization and denitrification wastewater sludge, including the fixed frame, the top fixed connection of fixed frame has conveying belt no.

[0007] Further description of the above technical scheme:

[0008] The extrusion mechanism includes a feeding plate, the feeding plate is fixedly connected to the rear side of the hopper, a plurality of limiting strips are fixedly connected to the outer wall of the feeding plate, a plurality of water permeation holes are formed in the inner wall of the feeding plate, a plurality of bearing seats are fixedly connected to the top of the feeding plate, rollers are rotatably connected to the inner wall of the bearing seats, and a support frame is fixedly connected to the bottom of the feeding plate.

[0009] Further description of the above technical scheme:

[0010] The rear side of the air outlet shell one and the air outlet shell two is fixedly connected with a air supply pipe, and the rear side of the air supply pipe is fixedly connected with a hot air machine.

[0011] Further description of the above technical scheme:

[0012] The bottom of the hot air machine is fixedly connected with a fixed base, and the bottom of the fixed frame is fixedly connected with a plurality of shock-absorbing pads.

[0013] Further description of the above technical scheme:

[0014] The outer wall of the conveying belt one and the conveying belt two is provided with a groove, and the left side of the fixed frame is fixedly connected with a storage box.

[0015] Further description of the above technical scheme:

[0016] The top of the air outlet shell one is fixedly connected with a lamp holder, and the top of the lamp holder is fixedly connected with a plurality of fault lamps.

[0017] Further description of the above technical scheme:

[0018] The rear side of the support frame is fixedly connected with a raw material box, and the rear side of the feeding plate is fixedly connected to the inner wall of the raw material box.

[0019] Further description of the above technical solution:

[0020] The inner wall of the support frame is fixedly connected with a guide plate, and the rear right end of the guide plate is fixedly connected with a water guide pipe.

[0021] The utility model has the advantages of the following:

[0022] 1. In the utility model, the sludge raw material becomes strip-shaped under the extrusion and falls onto the conveying belt I, the conveying belt I drives the strip-shaped sludge block to move, at this time, the upper air outlet shell I air dries its surface, when the strip-shaped sludge block reaches the right end of the conveying belt I, it falls onto the lower conveying belt II, is conveyed to the left by the conveying belt II, the upper air outlet shell II air dries the strip-shaped sludge block again, and finally the strip-shaped sludge block after sufficient air drying falls into the storage box, and the dryness is reached to the storage standard after two times of air drying.

[0023] 2. In the utility model, when the sludge raw material is transported upwards by the feeding plate, the water is squeezed out by the roller on the feeding plate in the conveying process, and the water flows into the lower guide plate through the water seepage hole on the feeding plate, so that the water is separated from the raw material, the sheet-shaped sludge raw material after being squeezed by the roller is continuously transported upwards by the feeding plate until the sludge block falls into the hopper connected with the feeding plate, so that the sludge raw material is partially dewatered before entering the hopper, and does not hinder the sludge raw material from being squeezed into strip-shaped in the hopper. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A three-dimensional schematic view of the drying mechanism of the desulfurization and denitrification wastewater sludge is provided in the utility model;

[0025] Figure 2 A is an enlarged view of the A part; Figure 1

[0026] Figure 3 A front view of the drying mechanism of the desulfurization and denitrification wastewater sludge is provided in the utility model;

[0027] Figure 4 A side view of the drying mechanism of the desulfurization and denitrification wastewater sludge is provided in the utility model;

[0028] Figure 5 A partial structure schematic view of the drying mechanism of the desulfurization and denitrification wastewater sludge is provided in the utility model.

[0029] LEGEND:

[0030] ​1, fixed frame; 2, extrusion mechanism; 201, feeding plate; 202, limiting strip; 203, water seepage hole; 204, bearing seat; 205, roller; 206, support frame; 3, conveying belt one; 4, conveying belt two; 5, fixed block; 6, air outlet shell one; 7, air outlet shell two; 8, hopper; 9, extrusion wheel; 10, strip groove; 11, steering gear one; 12, brake motor; 13, steering gear two; 14, air supply pipe; 15, hot air machine; 16, fixed base; 17, groove; 18, storage box; 19, lamp holder; 20, fault light; 21, shock pad; 22, guide plate; 23, water guide pipe; 24, raw material box. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] With reference to Figure 1 , Figure 2 and Figure 5 , the present application provides an embodiment: a drying mechanism for desulfurization and denitrification wastewater sludge, which comprises a fixed frame 1, the top of the fixed frame 1 is fixedly connected with a conveying belt one 3, the inner wall of the bottom of the fixed frame 1 is fixedly connected with a conveying belt two 4, the outer wall of the fixed frame 1 is fixedly connected with a plurality of fixed blocks 5, the top of the plurality of fixed blocks 5 is fixedly connected with an air outlet shell one 6, the bottom of the plurality of fixed blocks 5 is fixedly connected with an air outlet shell two 7, the left side of the fixed frame 1 is fixedly connected with two brake motors 12, the output ends of the two brake motors 12 are both fixedly connected with steering gears two 13, the top of the left side of the fixed frame 1 is fixedly connected with a hopper 8, the inner wall of the hopper 8 is rotatably connected with two extrusion wheels 9, the outer wall of the two extrusion wheels 9 is provided with a plurality of strip grooves 10, the front side of the two extrusion wheels 9 penetrates through the outer wall of the hopper 8 and is both fixedly connected with steering gears one 11, the steering gears one 11 are meshingly connected with the steering gears two 13, the rear side of the fixed frame 1 is provided with an extrusion mechanism 2, the extrusion mechanism 2 is used for preliminarily extruding the internal moisture of the sludge during drying;

[0033] Specific, fixed frame 1 is connected with conveyor belt one 3 and conveyor belt two 4, conveyor belt one 3 is arranged above conveyor belt two 4, hopper 8 is arranged above the left side of conveyor belt one 3, two extruding wheels 9 are rotatably connected inside, a plurality of strip grooves 10 are formed in the outer wall of two extruding wheels 9, the front end of extruding wheel 9 penetrates hopper 8, and is fixedly connected with steering gear one 11, brake motor 12 is fixed on the left top of fixed frame 1, the output end of brake motor 12 is connected with steering gear two 13, and steering gear two 13 is engaged with steering gear one 11, when the sludge raw material preliminarily removed of water enters hopper 8, brake motor 12 starts to work, drives two extruding wheels 9 to rotate to the adjacent side, the sludge raw material is extruded to pass through the gap of strip groove 10, and is extruded into a strip shape, then falls above conveyor belt one 3, conveyor belt one 3 drives the strip sludge block to move to the right, air outlet shell one 6 above conveyor belt one 3 air dries the surface of the strip sludge block, when the strip sludge block is transported to the right end of conveyor belt one 3, falls on the lower conveyor belt two 4, the position of the strip sludge block is changed, then is conveyed to the left side by conveyor belt two 4, air outlet shell two 7 above conveyor belt two 4 air dries the strip sludge block again, and finally the strip sludge block after being fully air dried falls into storage box 18.

[0034] Referring to Figure 1 、 Figure 4 and Figure 5 , the utility model provides an embodiment: extrusion mechanism 2 includes feeding plate 201, and feeding plate 201 is fixedly connected at the back of hopper 8, a plurality of limit strips 202 are fixedly connected on the outer wall of feeding plate 201, a plurality of water seepage holes 203 are formed in the inner wall of feeding plate 201, a plurality of bearing seats 204 are fixedly connected on the top of feeding plate 201, the inner wall of bearing seat 204 is rotatably connected with roller 205, and support frame 206 is fixedly connected on the bottom of feeding plate 201.

[0035] Specifically, the feeding plate 201 is fixed on the top of the support frame 206, the surface of the feeding plate 201 is fixed with a plurality of limit strips 202, and a plurality of water seepage holes 203 are formed in the feeding plate 201. The bearing seat 204 fixed on the top of the feeding plate 201 allows the roller 205 to rotate on the top of the feeding plate 201. When the sludge raw material is transported upward by the feeding plate 201, the sludge raw material protruding above the limit strips 202 is extruded by the multiple rollers 205 fixed on the feeding plate 201, and part of the water inside the sludge raw material is extruded out. The extruded water then passes through the water seepage holes 203 formed in the feeding plate 201 and enters the guide plate 22 below, separating the extruded water from the raw material. The sheet-shaped sludge raw material extruded by the roller 205 is then continuously transported upward by the feeding plate 201. The limit strips 202 stabilize the sludge block during transportation. Finally, the sludge block falls into the hopper 8 connected to the feeding plate 201.

[0036] With reference to Figure 3 , Figure 4 and Figure 5 , the utility model provides an embodiment: the rear side of air outlet shell no. 6 and air outlet shell no. 7 is fixedly connected with air supply pipe 14, the rear side of air supply pipe 14 is fixedly connected with hot air machine 15, the bottom of hot air machine 15 is fixedly connected with fixed base 16, the bottom of fixed frame 1 is fixedly connected with multiple shock pads 21, the outer wall of conveyer belt no. 3 and conveyer belt no. 4 is all set with recess 17, the left side of fixed frame 1 is fixedly connected with storage box 18;

[0037] Specifically, the rear side of air outlet shell no. 6 and air outlet shell no. 7 is fixedly connected with air supply pipe 14, the other end of two air supply pipes 14 is connected in the front end of hot air machine 15, hot air machine 15 is fixed on fixed base 16, after hot air machine 15 starts, hot air is guided to the inside of air outlet shell no. 6 and air outlet shell no. 7 respectively by two air supply pipes 14, and strip-shaped sludge block is air dried, shock pad 21 is fixed in the bottom of fixed frame 1, when the device works, can reduce the effect of vibration, storage box 18 is set up in the left side of fixed frame 1, corresponds with conveyer belt no. 4, and sludge block after drying can fall in and is stored in batches.

[0038] With reference to Figure 1 , Figure 4 and Figure 5 , the utility model provides an embodiment: the top of air outlet shell no. 6 is fixedly connected with lamp holder 19, the top of lamp holder 19 is fixedly connected with multiple trouble lights 20, the rear side of support frame 206 is fixedly connected with raw material box 24, the rear side of feeding plate 201 is fixedly connected in the inner wall of raw material box 24, the inner wall of support frame 206 is fixedly connected with guide plate 22, the rear side right end of guide plate 22 is fixedly connected with water guide pipe 23;

[0039] Specifically, the top of lamp holder 19 fixed on air outlet shell no. 6 is provided with multiple trouble lights 20, and the trouble lights 20 correspond to parts of the device respectively, when a problem occurs at a certain place, the trouble light 20 is lighted, prompting the staff to maintain it, the raw material box 24 is fixed on the rear side of support frame 206, one end of the feeding plate 201 is placed therein, and the sludge raw material can be placed in the raw material box during work and transported by the feeding plate 201, and the water guide pipe 23 is fixed at the low place of the guide plate 22, can guide the sewage in the guide plate 22 to be stored.

[0040] Working principle: when the primary dewatering of sludge raw materials into the hopper 8, brake motor 12 start, prompting two extrusion wheel 9 to each other close to one side rotation. Sludge raw materials under the extrusion from the gap of the strip slot 10, become strip-shaped after falling on the conveyor belt 1 3, conveyor belt 1 3 drive strip-shaped sludge block to the right side, the upper air shell 1 6 to its surface for drying. When the strip-shaped sludge block to the right end of the conveyor belt 1 3, fall to the lower conveyor belt 2 4, its position changes, then by the conveyor belt 2 4 to the left transmission. The air shell 2 7 above the conveyor belt 2 4 for the second drying of strip-shaped sludge block, the final strip-shaped sludge block after drying, fall into the storage box 1 8, strip-shaped sludge block after two drying, so that its dryness reaches the storage standard;

[0041] And, when the sludge raw materials by the feeding plate 201 upward transport, higher than the protruding limiting strip 202 height of sludge raw materials in the upward conveying process, will be fixed on the feeding plate 201 by multiple rollers 205 extrusion, thereby extruding its internal part of the moisture. Subsequently, the extruded water will flow through the water seepage hole 203 opened on the feeding plate 201, into the guide plate 22 below, realize the separation of extruded water and raw materials. Then, the sheet-shaped sludge raw material after being extruded by the roller 205 continues to be transported upward by the feeding plate 201, and the limiting strip 202 plays a role in ensuring the stability of the sludge block during transportation, until the sludge block falls into the hopper 8 connected with the feeding plate 201, realizing that the sludge raw materials can be partially dewatered before entering the hopper 8, without hindering the sludge block from being extruded into a strip shape when entering the hopper 8.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A desulfurization and denitrification wastewater sludge drying mechanism comprising a fixing frame (1), characterized in that: The top of the fixed frame (1) is fixedly connected with a conveying belt one (3), the inner wall of the bottom of the fixed frame (1) is fixedly connected with a conveying belt two (4), the outer wall of the fixed frame (1) is fixedly connected with a plurality of fixed blocks (5), the top of the plurality of fixed blocks (5) is fixedly connected with an air outlet shell one (6), the bottom of the plurality of fixed blocks (5) is fixedly connected with an air outlet shell two (7), the left side of the fixed frame (1) is fixedly connected with two brake motors (12), the output ends of the two brake motors (12) are fixedly connected with two steering gears two (13), the left top of the fixed frame (1) is fixedly connected with a hopper (8), the inner wall of the hopper (8) is rotatably connected with two extrusion wheels (9), the outer wall of the two extrusion wheels (9) is provided with a plurality of strip-shaped grooves (10), the front side of the two extrusion wheels (9) penetrates the outer wall of the hopper (8) and is fixedly connected with a steering gear one (11), the steering gear one (11) is engagedly connected with the steering gear two (13), the rear side of the fixed frame (1) is provided with an extrusion mechanism (2), and the extrusion mechanism (2) is used for preliminarily extruding the internal moisture when the sludge is dried.

2. The desulfurization and denitrification wastewater sludge drying mechanism according to claim 1, characterized in that: The extrusion mechanism (2) comprises a feeding plate (201), the feeding plate (201) is fixedly connected to the rear side of the hopper (8), the outer wall of the feeding plate (201) is fixedly connected with a plurality of limiting strips (202), the inner wall of the feeding plate (201) is provided with a plurality of water permeation holes (203), the top of the feeding plate (201) is fixedly connected with a plurality of bearing seats (204), the inner wall of the bearing seat (204) is rotatably connected with a roller (205), and the bottom of the feeding plate (201) is fixedly connected with a support frame (206).

3. The desulfurization and denitrification wastewater sludge drying mechanism according to claim 1, characterized in that: The rear side of the air outlet shell one (6) and the air outlet shell two (7) is fixedly connected with a air supply pipe (14), the rear side of the air supply pipe (14) is fixedly connected with a hot air machine (15).

4. The desulfurization and denitrification wastewater sludge drying mechanism according to claim 3, characterized in that: The bottom of the hot air machine (15) is fixedly connected with a fixed base (16), and the bottom of the fixed frame (1) is fixedly connected with a plurality of damping pads (21).

5. The desulfurization and denitrification wastewater sludge drying mechanism according to claim 1, characterized in that: The outer wall of the conveying belt one (3) and the conveying belt two (4) is provided with a groove (17), and the left side of the fixed frame (1) is fixedly connected with a storage box (18).

6. The desulfurization and denitrification wastewater sludge drying mechanism according to claim 1, characterized in that: The top of the air outlet shell one (6) is fixedly connected with a lamp holder (19), and the top of the lamp holder (19) is fixedly connected with a plurality of fault lamps (20).

7. The desulfurization and denitrification wastewater sludge drying mechanism according to claim 2, characterized in that: The rear side of the support frame (206) is fixedly connected with a raw material box (24), and the rear side of the feeding plate (201) is fixedly connected to the inner wall of the raw material box (24).

8. The desulfurization and denitrification wastewater sludge drying mechanism according to claim 2, characterized in that: The inner wall of the support frame (206) is fixedly connected with a guide plate (22), and the rear side right end of the guide plate (22) is fixedly connected with a water guide pipe (23).

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