Sludge drying machine capable of utilizing waste heat conveniently

Abstract

The utility model relates to the technical field of sludge drying machines, and discloses a sludge drying machine convenient to utilize waste heat, which comprises a sludge drying machine body, a feeding hopper is arranged at the top of the sludge drying machine body, and an air heater is arranged in the sludge drying machine body. By arranging the control assembly, a rotating block is stirred on the surface of a filter block, the rotating block drives a threaded rod to rotate in the filter block through a disc, when the threaded rod rotates, a movable plate can drive a baffle and a sliding block to longitudinally move along the surface of a fixed rod, and in the upward moving process of the baffle, a first filter plate is shielded; and the second filter plate is exposed, in the upward movement process of the movable plate, when the fixed block touches the surface of the bell, the bell can make a sound, and therefore an operator can be reminded that switching of the first filter plate and the second filter plate is completed, and the situation that the waste heat recovery efficiency is affected due to shutdown is avoided.

Description

Technical Field

[0001] This utility model relates to the field of sludge drying machine technology, specifically a sludge drying machine that facilitates the utilization of waste heat. Background Technology

[0002] Sludge is a type of solid organic waste with extremely high water content. Even after pretreatment such as concentration and centrifugation, the water content of sludge is still around 80%. Therefore, regardless of the end-of-life treatment technology used, the key is to remove the water from the sludge in a simple, efficient, and energy-saving manner at the front end so that the raw material meets the final treatment requirements. However, since sludge contains a large amount of wastewater, a sludge dryer is needed to filter and dry the sludge during the drying process.

[0003] Existing sludge dryers directly discharge exhaust gas after drying sludge. This exhaust gas contains water vapor and various gases volatilized from the sludge, and also carries a large amount of heat. If this exhaust gas is directly discharged into the atmosphere, it will cause a significant heat loss. In order to recover the heat in the exhaust gas, filters are usually installed to filter the exhaust gas, and then the heat from the filtered exhaust gas is transferred to other media that need to be heated, such as air or water. However, when the filter plate becomes clogged, the machine needs to be stopped and the filter plate replaced before the waste heat can be recovered. This is cumbersome and easily leads to waste of resources. To address this problem, we propose a sludge dryer that facilitates the utilization of waste heat. Utility Model Content

[0004] The purpose of this invention is to provide a sludge drying machine that facilitates the utilization of waste heat, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sludge dryer for facilitating the utilization of waste heat, comprising a sludge dryer body, a feed hopper at the top of the sludge dryer body, a hot air blower inside the sludge dryer body, a tail gas discharge pipe on the surface of the sludge dryer body, the tail gas discharge pipe penetrating a filter block and fixedly connected to the filter block, the filter block being fixedly mounted on the surface of a fixing plate, the fixing plate being fixedly mounted on the surface of the sludge dryer body, the filter block being penetrated by a conveying pipe and fixedly connected to the conveying pipe, the conveying pipe penetrating a water storage tank and fixedly connected to the water storage tank, a filter frame fixedly installed on the inner wall of the filter block, and a control component inside the filter block, the control component including:

[0006] Filter plate one, and filter plate two are both disposed inside the filter frame;

[0007] A baffle, the baffle being used to change the direction of gas flow;

[0008] The shielding component is used to block the gas, thereby reminding the operator that the switch between filter plate one and filter plate two has been completed, and avoiding the impact of downtime on the efficiency of waste heat recovery.

[0009] Preferably, filter plate one is fixedly installed on the inner wall of filter frame, filter plate two is fixedly installed on the inner wall of filter frame, the surface of filter frame is in contact with the surface of baffle, and baffle can slide along the surface of filter frame.

[0010] Preferably, the blocking component includes a slider, which is fixedly mounted on the surface of the baffle. The slider is penetrated by a fixing rod and slidably connected to the fixing rod. The fixing rod is fixedly mounted on the surface of the filter frame. When the baffle moves, the slider can move longitudinally along the surface of the fixing rod.

[0011] Preferably, a movable plate is fixedly installed on the surface of the baffle. The movable plate is penetrated by a threaded rod and threadedly connected to the threaded rod. The threaded rod penetrates the filter block and is rotatably connected to the filter block. A bell is fixedly installed on the surface of the movable plate. When the threaded rod rotates, the movable plate can drive the baffle to move longitudinally.

[0012] Preferably, a disc is fixedly mounted on the surface of the threaded rod, a slot is formed on the surface of the disc, and a rotating block is fixedly mounted on the top of the disc. When the rotating block rotates, the disc fixed on the surface of the rotating block can drive the threaded rod to perform circumferential motion synchronously.

[0013] Preferably, a fixing block is fixedly installed on the inner wall of the filter block. The fixing block is designed to remind the operator when the bell is touched.

[0014] Preferably, a support frame is fixedly installed on the top of the filter block. The support frame is penetrated by a limiting rod and slidably connected to the limiting rod. The surface of the limiting rod is fixedly connected to one end of a spring, and the other end of the spring is fixedly installed on the inner wall of the support frame. When the limiting rod is no longer under force, it can spring up from the support frame with the support of the spring.

[0015] Compared with the prior art, this utility model provides a sludge drying machine that facilitates the utilization of waste heat, and has the following beneficial effects:

[0016] 1. This sludge dryer, which facilitates the utilization of waste heat, is equipped with a control component. By moving a rotating block on the surface of the filter block, the rotating block drives a threaded rod to rotate inside the filter block via a disc. As the threaded rod rotates, a moving plate can drive a baffle and a slider to move longitudinally along the surface of a fixed rod. During the upward movement of the baffle, it covers filter plate one, exposing filter plate two. As the moving plate moves upward, when the fixed block touches the surface of a bell, the bell can sound, thus reminding the operator that the switch between filter plate one and filter plate two has been completed, avoiding the impact of downtime on the efficiency of waste heat recovery.

[0017] 2. This sludge dryer, which facilitates the utilization of waste heat, is equipped with a baffle. Because the baffle can be displaced when the threaded rod rotates, the disc and the threaded rod cannot rotate when the slot on the disc surface is restricted by the limiting rod, and the position of the baffle cannot be moved. This method can enhance the stability of the baffle when it is blocked. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This is a frontal cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the filter block of this utility model;

[0021] Figure 4 This is a schematic diagram of the control component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the shielding component of this utility model.

[0023] In the diagram: 1. Sludge dryer body; 2. Feed hopper; 3. Hot air blower; 4. Exhaust pipe; 5. Filter block; 6. Fixing plate; 7. Conveying pipe; 8. Water storage tank; 9. Control components; 91. Filter plate one; 92. Filter plate two; 93. Baffle; 94. Blocking component; 941. Sliding block; 942. Fixing rod; 943. Moving plate; 944. Bell; 945. Threaded rod; 946. Disc; 947. Slot; 948. Rotating block; 949. Support frame; 9410. Limiting rod; 9411. Spring; 9412. Fixing block; 10. Filter frame. Detailed Implementation

[0024] like Figures 1-5As shown, this utility model provides a technical solution: a sludge dryer that facilitates the utilization of waste heat, including a sludge dryer body 1, a feed hopper 2 at the top of the sludge dryer body 1, a hot air blower 3 inside the sludge dryer body 1, a tail gas discharge pipe 4 on the surface of the sludge dryer body 1, the tail gas discharge pipe 4 passing through and fixedly connected to a filter block 5, the filter block 5 being fixedly installed on the surface of a fixing plate 6, the fixing plate 6 being fixedly installed on the surface of the sludge dryer body 1, the filter block 5 being passed through and fixedly connected to a conveying pipe 7, the conveying pipe 7 passing through and fixedly connected to a water storage tank 8, and a filter frame 10 fixedly installed on the inner wall of the filter block 5. The filter block 5 is equipped with a control component 9, which includes: filter plate 1 91, filter plate 2 92, baffle 93 and shielding member 94. When the threaded rod 945 rotates, the moving plate 943 can drive the baffle 93 and the slider 941 to move longitudinally along the surface of the fixed rod 942. During the upward movement, the baffle 93 can shield the filter plate 1 91 and expose the filter plate 2 92. During the upward movement of the moving plate 943, when the fixed block 9412 touches the surface of the bell 944, the bell 944 can make a sound, thereby reminding the operator that the switching between filter plate 1 91 and filter plate 2 92 has been completed, so as to avoid affecting the efficiency of waste heat recovery due to machine shutdown.

[0025] A filter plate 91 is fixedly installed on the inner wall of the filter frame 10. A filter plate 92 is fixedly installed on the inner wall of the filter frame 10. The surface of the filter frame 10 is in contact with the surface of the baffle 93, and the baffle 93 can slide along the surface of the filter frame 10. The blocking member 94 includes a slider 941, which is fixedly installed on the surface of the baffle 93. The slider 941 is penetrated by a fixing rod 942 and slidably connected to the fixing rod 942. The fixing rod 942 is fixedly installed on the surface of the filter frame 10. When the baffle 93 moves, the slider 941 can move longitudinally along the surface of the fixing rod 942. A movable plate 943 is fixedly installed on the surface of the baffle 93. The movable plate 943 is penetrated by a threaded rod 945 and threadedly connected to the threaded rod 945. The threaded rod 945 penetrates the filter block 5 and is rotatably connected to the filter block 5. A bell 944 is fixedly installed on the surface of the movable plate 943. When the threaded rod 945 rotates, the movable plate 943 can drive the baffle 93 to move longitudinally. A disc 946 is fixedly mounted on the surface of the threaded rod 945. A slot 947 is formed on the surface of the disc 946. A rotating block 948 is fixedly mounted on the top of the disc 946. When the rotating block 948 rotates, the disc 946 fixed to its surface can drive the threaded rod 945 to perform a synchronous circular motion. A fixing block 9412 is fixedly mounted on the inner wall of the filter block 5. The fixing block 9412 serves to remind the operator when the bell 944 is touched. A support frame 949 is fixedly mounted on the top of the filter block 5. The support frame 949 is penetrated by a limiting rod 9410 and slidably connected to it. The surface of the limiting rod 9410 is fixedly connected to one end of a spring 9411. The other end of the spring 9411 is fixedly mounted on the inner wall of the support frame 949. When the limiting rod 9410 is no longer under force, it can spring up from the support frame 949 with the support of the spring 9411.

[0026] In this invention, during use, the sludge to be dried is poured into the sludge dryer body 1 from the feed hopper 2. After pouring, the sludge is dried using a hot air blower 3. During the drying process, when exhaust gas needs to be discharged, it is discharged into the filter block 5 through the exhaust gas discharge pipe 4. The filter plate 91 in the filter block 5 filters the exhaust gas. The filtered exhaust gas enters the water storage tank 8 through the conveying pipe 7. When the filter plate 91 becomes clogged and needs to be switched, the limiting rod 9410 is pulled in the support frame 949. The limiting rod 9410, supported by the spring 9411, moves out of the slot 947 on the surface of the disc 946. After moving out, the pulling force is maintained, and the disc 946 and the threaded rod 945 are rotated in the filter block 5 through the rotating block 948. When the threaded rod 945 rotates, the moving plate 94... 3. The baffle 93 and slider 941 can move longitudinally along the surface of the fixed rod 942. During the upward movement of the baffle 93, the filter plate 91 is blocked and the filter plate 92 is exposed. During the upward movement of the moving plate 943, when the fixed block 9412 touches the surface of the bell 944, the bell 944 can make a sound, which can remind the operator that the switching between filter plate 91 and filter plate 92 has been completed, so as to avoid the impact of the waste heat recovery efficiency due to the machine stopping. After adjustment, the force of pulling the limit rod 9410 is released, and the limit rod 9410 can spring up under the support of the spring 9411 and lock into the slot 947 opened on the surface of the disc 946, which restricts the rotation of the disc 946. The position of the baffle 93 cannot be moved. This method can enhance the stability of the baffle 93 when blocking.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A sludge dryer that facilitates the utilization of waste heat, comprising a sludge dryer body (1), characterized in that: The sludge drying machine body (1) is provided with a feeding hopper (2) at the top, a hot air blower (3) is provided inside the sludge drying machine body (1), a tail gas discharge pipe (4) is provided on the surface of the sludge drying machine body (1), the tail gas discharge pipe (4) passes through the filter block (5) and is fixedly connected to the filter block (5), the filter block (5) is fixedly installed on the surface of the fixing plate (6), the fixing plate (6) is fixedly installed on the surface of the sludge drying machine body (1), the filter block (5) is passed through the conveying pipe (7) and is fixedly connected to the conveying pipe (7), the conveying pipe (7) passes through the water storage tank (8) and is fixedly connected to the water storage tank (8), a filter frame (10) is fixedly installed on the inner wall of the filter block (5), and a control component (9) is provided inside the filter block (5), the control component (9) includes: Filter plate one (91), and filter plate two (92) are both set inside filter frame (10); Baffle (93), said baffle (93) is used to change the direction of gas flow; A shielding element (94) is used to shield the gas.

2. The sludge drying machine according to claim 1, which facilitates the utilization of waste heat, is characterized in that: The first filter plate (91) is fixedly installed on the inner wall of the filter frame (10), and the second filter plate (92) is fixedly installed on the inner wall of the filter frame (10). The surface of the filter frame (10) is in contact with the surface of the baffle (93).

3. A sludge drying machine for facilitating the utilization of waste heat according to claim 1, characterized in that: The shielding member (94) includes a slider (941) which is fixedly mounted on the surface of the baffle (93). The slider (941) is penetrated by a fixing rod (942) and is slidably connected to the fixing rod (942). The fixing rod (942) is fixedly mounted on the surface of the filter frame (10).

4. A sludge drying machine for facilitating the utilization of waste heat according to claim 3, characterized in that: A movable plate (943) is fixedly installed on the surface of the baffle (93). The movable plate (943) is penetrated by a threaded rod (945) and threadedly connected to the threaded rod (945). The threaded rod (945) penetrates the filter block (5) and is rotatably connected to the filter block (5). A bell (944) is fixedly installed on the surface of the movable plate (943).

5. A sludge drying machine for facilitating the utilization of waste heat according to claim 4, characterized in that: A disc (946) is fixedly mounted on the surface of the threaded rod (945), a slot (947) is provided on the surface of the disc (946), and a rotating block (948) is fixedly mounted on the top of the disc (946).

6. A sludge drying machine for facilitating the utilization of waste heat according to claim 1, characterized in that: The filter block (5) is fixedly installed with a fixing block (9412) on its inner wall.

7. A sludge drying machine for facilitating the utilization of waste heat according to claim 1, characterized in that: A support frame (949) is fixedly installed on the top of the filter block (5). The support frame (949) is penetrated by a limiting rod (9410) and is slidably connected to the limiting rod (9410). The surface of the limiting rod (9410) is fixedly connected to one end of a spring (9411), and the other end of the spring (9411) is fixedly installed on the inner wall of the support frame (949).

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