Sludge dewatering and drying device

Abstract

The utility model discloses a sludge dewatering and drying device, which belongs to the technical field of sludge treatment and comprises support frames, a drying cylinder fixedly connected between the support frames, a discharge funnel fixedly connected to the bottom of the drying cylinder, a dewatering mechanism arranged on the outer wall of the drying cylinder, and a stirring mechanism arranged in the drying cylinder. The stirring mechanism comprises a stepping motor fixedly connected to the top of the drying cylinder, and a drying mechanism is arranged in the drying cylinder. The drying device has the beneficial effects that the stirring mechanism is arranged and comprises a stirring plate, the end of the stirring plate is fixedly connected with a protrusion, the inner wall of the drying cylinder is fixedly connected with a guide block matched with the protrusion, in the process that the stirring plate drives the protrusion to rotate, the protrusion is limited by the guide block to drive the stirring plate to deform to a certain degree, and after the protrusion is separated from the guide block, the stirring plate rotates. The stirring plates raise the sludge under the action of elastic force, the contact area of the sludge and air is increased, and the drying efficiency is improved; and the end surfaces of the guide block and the bulge are arc-shaped, so that the stability during relative movement is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a sludge dewatering and drying device. Background Technique

[0002] Sludge is a by-product of a pollution treatment process, which has the characteristics of high water content, complex composition, containing a large number of deadly microorganisms, etc., and is prone to secondary pollution. Drying treatment of it is a prerequisite for realizing harmlessness, reduction and resource utilization of sludge.

[0003] After retrieval, the Chinese patent publication number is CN218146318U, which discloses a sludge dewatering and drying device. Through the dewatering mesh cylinder arranged in the dewatering tank and the feeding screw, it is convenient to carry out spiral transportation and dewatering of the sludge added from the feeding hopper, and through the electric heating plate arranged in the dewatering tank and the temperature sensor, it is convenient to control the temperature and dry the input and output sludge. And through the drying box provided with an electric control conveying mechanism and a hot air drying mechanism, it is convenient to dry and output the sludge pretreated in the dewatering tank. At the same time, through the secondary hot air drying of the hot air drying mechanism, the sludge is efficiently dried and processed. The structure is simple and has a spiral feeding structure, a temperature control drying and a hot air drying structure, which is convenient for dewatering and multi-stage drying and drying treatment of sludge.

[0004] However, directly drying the sludge on the conveyor belt through the blowing plate, the drying effect of the sludge close to the conveyor belt is poor, which affects the drying uniformity. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sludge dewatering and drying device in order to solve the above problems.

[0006] The utility model realizes the above purpose through the following technical solutions:

[0007] A sludge dewatering and drying device includes a support frame. A drying cylinder is fixedly connected between the support frames. A discharge funnel is fixedly connected to the bottom of the drying cylinder. A dewatering mechanism is arranged on the outer wall of the drying cylinder. A stirring mechanism is arranged in the drying cylinder. The stirring mechanism includes a stepping motor fixedly connected to the top of the drying cylinder. The output end of the stepping motor is connected to a rotating shaft through a coupling. The rotating shaft is rotatably connected to the inner top wall of the drying cylinder. A plurality of circumferentially arranged stirring plates are fixedly connected to the outer wall of the rotating shaft. The stirring plates are inclined. The stirring plates are elastic. A convex is fixedly connected to the end of the stirring plate far away from the rotating shaft. A plurality of guiding blocks cooperating with the convex are fixedly connected to the inner wall of the drying cylinder. A drying mechanism is arranged in the drying cylinder.

[0008] Preferably, both the convex and the guiding block are arc-shaped.

[0009] Preferably, the drying mechanism includes a hot air blower fixedly connected to the top of the drying cylinder, an annular ventilation cavity is provided inside the drying cylinder, an air outlet of the hot air blower is connected to the ventilation cavity, and a plurality of air outlet holes connected to the ventilation cavity are provided on the guide block.

[0010] Preferably, a spiral blade is fixedly connected to the rotating shaft, and the spiral blade is located in the discharge funnel.

[0011] Preferably, the dehydration mechanism includes a mounting frame fixedly connected to the outer wall of the drying cylinder, a dehydration box is fixedly connected to the top of the mounting frame, a feed funnel is fixedly connected to the top of the dehydration box, the inner bottom wall of the dehydration box is inclined, a drain pipe is fixedly connected to the side of the dehydration box away from the drying cylinder, the drain pipe is located on the lower side of the inner bottom wall of the dehydration box, a feeding pipe is fixedly connected between the dehydration box and the drying cylinder, a filter cylinder is fixedly connected between the inner walls of the dehydration box, one end of the feeding pipe is connected to the inside of the filter cylinder, and the other end is connected to the inside of the drying cylinder, and a dehydration component is arranged in the filter cylinder.

[0012] Preferably, the dehydration assembly includes a rotating motor fixedly connected to one side of the dehydration box, the output end of the rotating motor is connected to a rotating shaft through a coupling, the rotating shaft is located in the filter cylinder, and a spiral conveying plate is fixedly connected to the rotating shaft, and the pitch between the spiral conveying plates gradually decreases as the distance from the drying cylinder decreases.

[0013] The beneficial effects are: a stirring mechanism is provided, the stirring mechanism includes a stirring plate, a protrusion is fixedly connected to the end of the stirring plate, and a guide block cooperating with the protrusion is fixedly connected to the inner wall of the drying cylinder. In the process of the stirring plate driving the protrusion to rotate, the protrusion is restricted by the guide block and drives the stirring plate to undergo a certain deformation. After the protrusion is separated from the guide block, the stirring plate lifts the sludge under the action of elastic force, thereby increasing the contact area between the sludge and the air and improving the drying efficiency; the end faces of the guide block and the protrusion are both arc-shaped, which improves the stability during relative movement.

[0014] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of a sludge dehydration and drying device described in the utility model;

[0017] Figure 2 This is a front view of a sludge dehydration and drying device according to the utility model;

[0018] Figure 3 is the front view of the internal structure of a sludge dewatering and drying device according to the present utility model;

[0019] Figure 4 is the top view of a sludge dewatering and drying device according to the present utility model;

[0020] Figure 5 is the top view of the internal structure of the drying cylinder of a sludge dewatering and drying device according to the present utility model.

[0021] The description of the reference numerals is as follows: 1, support frame; 2, drying cylinder; 201, discharge funnel; 3, mounting frame; 4, dewatering tank; 401, feed funnel; 402, drain pipe; 403, feeding pipe; 501, filter cylinder; 502, rotary motor; 503, rotary shaft; 504, spiral conveying blade; 601, stepping motor; 602, rotating shaft; 603, stirring plate; 604, protrusion; 605, guide block; 7, spiral blade; 8, hot air blower. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0024] The present utility model will be further described below in conjunction with the accompanying drawings:

[0025] As Figures 1 - 5 shown, a sludge dewatering and drying device includes a support frame 1, a drying cylinder 2 is fixedly connected between the support frames 1, a discharge funnel 201 is bolted to the bottom of the drying cylinder 2, and a control valve is arranged in the discharge funnel 201.

[0026] The outer wall of the drying cylinder 2 is provided with a dehydration mechanism. The dehydration mechanism includes a mounting frame 3 bolted to the outer wall of the drying cylinder 2. The top of the mounting frame 3 is bolted with a dehydration tank 4. The top of the dehydration tank 4 is fixedly connected with a feeding funnel 401. The inner bottom wall of the dehydration tank 4 is inclined. One side of the dehydration tank 4 away from the drying cylinder 2 is fixedly connected with a drain pipe 402. The drain pipe 402 is located on the lower side of the inner bottom wall of the dehydration tank 4, facilitating the discharge of sewage. A feeding pipe 403 is fixedly connected between the dehydration tank 4 and the drying cylinder 2. A filter cylinder 501 is fixedly connected between the inner walls of the dehydration tank 4. One end of the feeding pipe 403 communicates with the inside of the filter cylinder 501, and one end communicates with the inside of the drying cylinder 2. The dehydrated sludge is added into the drying cylinder 2 through the feeding pipe 403 for drying.

[0027] A dehydration component is arranged inside the filter cylinder 501. The dehydration component includes a rotary motor 502 bolted to one side of the dehydration tank 4. The output end of the rotary motor 502 is connected with a rotary shaft 503 through a coupling. The rotary shaft 503 is located inside the filter cylinder 501. A spiral conveying sheet 504 is fixedly connected to the rotary shaft 503. The pitch between the spiral conveying sheets 504 gradually decreases as the distance from the drying cylinder 2 decreases, so that the spiral conveying sheet 504 provides an extrusion force for the sludge and squeezes out the water in the sludge.

[0028] A stirring mechanism is arranged inside the drying cylinder 2. The stirring mechanism includes a stepping motor 601 bolted to the top of the drying cylinder 2. The output end of the stepping motor 601 is connected with a rotating shaft 602 through a coupling. The rotating shaft 602 is rotatably connected to the inner top wall of the drying cylinder 2. A plurality of circumferentially arranged stirring plates 603 are fixedly connected to the outer wall of the rotating shaft 602. The stirring plates 603 are elastic and are inclined, so that the stirring plates 603 can provide an upward component force for the sludge, facilitating the lifting of the sludge. A protrusion 604 is fixedly connected to one end of the stirring plate 603 away from the rotating shaft 602. A plurality of guiding blocks 605 cooperating with the protrusion 604 are fixedly connected to the inner wall of the drying cylinder 2. Both the protrusion 604 and the guiding blocks 605 are arc-shaped, improving the stability when the protrusion 604 and the guiding blocks 605 move relative to each other. A spiral blade 7 is fixedly connected to the rotating shaft 602. The spiral blade 7 is located inside the discharge funnel 201.

[0029] A drying mechanism is arranged inside the drying cylinder 2. The drying mechanism includes a hot air blower 8. The hot air blower 8 is bolted to the top of the drying cylinder 2. An annular ventilation cavity is opened inside the drying cylinder 2. The air outlet of the hot air blower 8 communicates with the ventilation cavity. A plurality of air outlet holes communicating with the ventilation cavity are opened on the guiding blocks 605. One-way valves are arranged in the air outlet holes to prevent sludge from entering the ventilation cavity. When the hot air blower 8 is started, the hot air enters the ventilation cavity and then is discharged through the air outlet holes, heating the sludge inside the drying cylinder 2 and quickly evaporating the water in the sludge, thereby drying the sludge.

[0030] Working principle: When in use, sludge is added into the filter cylinder 501 through the feeding hopper 401. The rotating motor 502 is started, and the rotating motor 502 drives the rotating shaft 503 to drive the spiral conveying blade 504 to rotate. While conveying the sludge, the water in the sludge is squeezed out. The dehydrated sludge is added into the drying cylinder 2 through the feeding pipe 403. The hot air blower 8 is started. After the hot air enters the ventilation cavity, it is discharged through the air outlet holes to dry the sludge in the drying cylinder 2. The stepping motor 601 is started, and the stepping motor 601 drives the rotating shaft 602 to rotate. The rotating shaft 602 drives the stirring plate 603 to drive the protrusion 604 to rotate. When the protrusion 604 abuts against the guiding block 605, the protrusion 604 is restricted by the guiding block 605 to drive the stirring plate 603 to deform to a certain extent. After the protrusion 604 is separated from the guiding block 605, the stirring plate 603 raises the sludge under the action of elastic force, increasing the contact area between the sludge and the air and improving the drying efficiency. The end faces of the guiding block 605 and the protrusion 604 are both arc-shaped, improving the stability during relative movement. While the rotating shaft 602 rotates, it will drive the spiral blade 7 to rotate. The sludge in the discharge hopper 201 is turned over upward through the spiral blade 7 to improve the drying efficiency. When the drying is completed and the sludge in the drying cylinder 2 needs to be discharged, the rotating shaft 602 drives the spiral blade 7 to reverse, conveying the sludge in the drying cylinder 2 downward to avoid blockage of the discharge hopper 201.

[0031] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sludge dewatering and drying device, comprising a support frame (1), a drying cylinder (2) is fixedly connected between the support frames (1), a discharge funnel (201) is fixedly connected to the bottom of the drying cylinder (2), and a dewatering mechanism is arranged on the outer wall of the drying cylinder (2), characterized in that: A stirring mechanism is arranged inside the drying cylinder (2). The stirring mechanism includes a stepping motor (601) fixedly connected to the top of the drying cylinder (2). The output end of the stepping motor (601) is connected to a rotating shaft (602) through a coupling. The rotating shaft (602) is rotatably connected to the inner top wall of the drying cylinder (2). A plurality of circumferentially arranged stirring plates (603) are fixedly connected to the outer wall of the rotating shaft (602). The stirring plates (603) are inclined. The stirring plates (603) are elastic. A protrusion (604) is fixedly connected to one end of the stirring plate (603) away from the rotating shaft (602). A plurality of guide blocks (605) cooperating with the protrusion (604) are fixedly connected to the inner wall of the drying cylinder (2). A drying mechanism is arranged inside the drying cylinder (2).

2. The sludge dewatering and drying device according to claim 1, characterized in that: Both the protrusion (604) and the guide block (605) are arc-shaped.

3. A sludge dewatering and drying device according to claim 1, characterized in that: The drying mechanism includes a hot air blower (8). The hot air blower (8) is fixedly connected to the top of the drying cylinder (2). An annular ventilation cavity is formed inside the drying cylinder (2). The air outlet of the hot air blower (8) is communicated with the ventilation cavity. A plurality of air outlet holes communicated with the ventilation cavity are formed in the guide block (605).

4. A sludge dewatering and drying device according to claim 1, characterized in that: A spiral blade (7) is fixedly connected to the rotating shaft (602). The spiral blade (7) is located inside the discharge funnel (201).

5. A sludge dewatering and drying device according to claim 1, characterized in that: The dehydration mechanism includes a mounting frame (3) fixedly connected to the outer wall of the drying cylinder (2). A dehydration tank (4) is fixedly connected to the top of the mounting frame (3). A feed funnel (401) is fixedly connected to the top of the dehydration tank (4). The inner bottom wall of the dehydration tank (4) is inclined. A drain pipe (402) is fixedly connected to one side of the dehydration tank (4) away from the drying cylinder (2). The drain pipe (402) is located on the lower side of the inner bottom wall of the dehydration tank (4). A feeding pipe (403) is fixedly connected between the dehydration tank (4) and the drying cylinder (2). A filter cylinder (501) is fixedly connected between the inner walls of the dehydration tank (4). One end of the feeding pipe (403) is communicated with the inside of the filter cylinder (501), and one end is communicated with the inside of the drying cylinder (2). A dehydration component is arranged inside the filter cylinder (501).

6. The sludge dewatering and drying device according to claim 5, wherein: The dehydration component includes a rotating motor (502) fixedly connected to one side of the dehydration tank (4). The output end of the rotating motor (502) is connected to a rotating shaft (503) through a coupling. The rotating shaft (503) is located inside the filter cylinder (501). A spiral conveying sheet (504) is fixedly connected to the rotating shaft (503). The pitch between the spiral conveying sheets (504) gradually decreases as the distance from the drying cylinder (2) decreases.

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