A new type of steam generating device for sludge drying

Abstract

The present invention belongs to the technical field of pollution treatment and sludge drying, and is specifically a steam generating device for novel sludge drying, comprising a shell, a sludge pipe is arranged above the shell, a feed pipe is arranged equidistantly on the sludge pipe corresponding to the sludge box, a segmented dumping type sludge box is arranged equidistantly inside the shell, a base is installed at the bottom of the sludge box, and a central axis for dumping the sludge box is installed on one side of the base. When the sludge box is dumped, the connector of the conveying pipe pushes the movable sleeve to move, and the movable sleeve is contracted by a reset spring so that the conveying pipe passes through the connector and separates from the movable sleeve. When the sludge box is reset after dumping, the connector of the conveying pipe pushes the movable sleeve to move, and the movable sleeve is contracted by a reset spring so that the conveying pipe passes through the connector and enters the movable sleeve, which is conducive to completing the separation of the guide pipe and the conveying pipe when the sludge box is dumped, and is conducive to completing the nested connection of the guide pipe and the conveying pipe when the sludge box is dumped and reset.

Description

Technical Field

[0001] The present invention relates to the technical fields of pollution treatment and sludge drying, and particularly to a steam generating device for novel sludge drying. Background Art

[0002] Steam drying of sludge is an efficient sludge treatment method, which mainly utilizes the heat energy of steam to evaporate the moisture in the sludge, thereby achieving the drying and volume reduction of the sludge; the steam directly contacts the sludge, and the moisture in the sludge is quickly evaporated through heat transfer, thereby achieving rapid drying. This contact method improves the drying efficiency and effectively reduces the volume of the sludge.

[0003] When the sludge is in a piled state, the outer layer is more likely to come into contact with the space, so that the moisture is carried away by the air and is more easily dried. However, the internal sludge is difficult to contact the air. At the same time, due to the interaction between the internal sludge isolation chambers, the binding force between the particles makes it difficult for the moisture to volatilize from the particles. At present, when using steam to dry the sludge, the drying speed of more sludge is relatively slow. At the same time, when using steam to dry the sludge, the sludge located on the outside is more easily dried. The dried outer sludge will still absorb a certain amount of heat, affecting the drying effect of the internal sludge. At the same time, when using steam to dry the sludge, if there is contact, the moisture and condensate contained in the steam will have a certain negative impact on the drying of the sludge.

[0004] For example, in the existing patent (Publication No.: CN113480135B) and a sludge double drying device and its method, the superheated steam and high heat radiation contact the sludge to form a drying effect. The sludge that first comes into contact with the superheated steam and high heat radiation will have a better drying effect than other parts. If not processed in time, this will lead to uneven drying degrees of the shallow layer and the deep layer of the sludge. The deep-layer sludge requires a longer time period for drying, affecting the sludge drying efficiency.

[0005] Therefore, it is necessary to provide a steam generating device for novel sludge drying to solve the above technical problems. Summary of the Invention

[0006] To solve the above technical problems, the present invention provides a steam generating device for novel sludge drying, which solves the problems that the internal drying of the piled sludge is relatively slow, the shallow-layer sludge dries earlier than the sludge in other areas, and the dried sludge affects the drying effect of the deep-layer sludge.

[0007] A steam generating device for a new type of sludge drying provided by the present invention includes a housing. A sludge pipe is arranged above the housing. Feeding pipes are equidistantly arranged on the sludge pipe corresponding to a sludge tank. Sectional tipping sludge tanks are equidistantly arranged inside the housing. A base is installed at the bottom of the sludge tank. A central axis for tipping the sludge tank is installed on one side of the base. Humidity detection modules are equidistantly arranged on the side wall of the sludge tank according to the depth.

[0008] A steam generating component is installed on the left side inside the housing. Exhaust pipes of the steam generating component are respectively provided with guiding pipes corresponding to the sludge tanks. The end of the guiding pipe is connected to a corresponding conveying pipe through an embedded sleeve.

[0009] Steam tubular components are equidistantly arranged inside the sludge tank. Bending ducts are uniformly arranged inside the conveying pipes of the steam tubular components. The steam generated by the steam generating component sequentially passes through the exhaust pipe, the guiding pipe, the embedded sleeve, the conveying pipe and the bending duct and is sent into the sludge tank. A connection head matching the sliding nested embedded sleeve is arranged at the top of the conveying pipe. Water drainage holes are opened at the bottom of the conveying pipe.

[0010] Tipping assemblies are arranged on both sides of the outer wall of each sludge tank. The tipping assembly includes a hydraulic push rod, and a stroke sensor is arranged inside the hydraulic push rod.

[0011] Each humidity detection module corresponds to the sectional stroke signal of the stroke sensor. The drying signal of any humidity detection module starts the hydraulic push rod and makes it move to the position corresponding to the sectional stroke signal of the stroke sensor.

[0012] Preferably, the sludge tank is divided into three parts: a shallow layer, a middle layer and a deep layer according to the depth. Three humidity detection modules are respectively arranged for the sludge tank corresponding to the three parts.

[0013] Preferably, four groups of steam tubular components are arranged inside the sludge tank, and four groups of guiding pipes are correspondingly arranged for the four groups of steam tubular components.

[0014] Preferably, one side of the bending duct is bent upward at the opening, and a filter element is installed at the upward bending part of the bending duct. The other opening of the bending duct is located on the outer wall of the conveying pipe.

[0015] Preferably, a movable sleeve is slidably installed on the outer wall of the socket of the embedded sleeve, and a return spring for elastic nesting is arranged between the movable sleeve and the socket.

[0016] Preferably, the connection head is in the shape of a triangular plate with an oval mouth part. When the sludge tank is tipped, the connection head of the conveying pipe pushes the movable sleeve to displace. The movable sleeve contracts through the return spring, so that the conveying pipe disengages from the movable sleeve through the connection head.

[0017] Preferably, the connecting head is in the shape of a triangular plate with an oval mouth. When the sludge tank is reset after being tilted, the connecting head of the conveying pipe pushes the movable sleeve to displace. The movable sleeve contracts through the return spring, enabling the conveying pipe to enter the movable sleeve through the connecting head.

[0018] Preferably, an air booster pump is installed on the top of the steam tank of the steam generating component. The air inlet and outlet of the air booster pump are both connected to the exhaust pipe.

[0019] Preferably, the end of the movable rod of the hydraulic push rod is connected to the outer shaft of the corresponding rotating shaft through a movable joint.

[0020] The inner shaft of the rotating shaft is fixed corresponding to the outer wall of the sludge tank.

[0021] Preferably, a discharge port is provided on the outer wall of the housing corresponding to the tilting side of the sludge tank. The number and position of the discharge ports correspond to the number and position of the sludge tanks one by one. A guiding hopper is provided on the tilting side of the sludge tank.

[0022] An exhaust fan is provided on the top wall of the housing corresponding to the sludge tank. Two exhaust fans are provided corresponding to the top of a single sludge tank.

[0023] Compared with the related art, a steam generating device for a new type of sludge drying provided by the present invention has the following beneficial effects:

[0024] 1. Through the settings of the sludge tank, tilting component and humidity detection module, the present invention disperses and dries the accumulated sludge through the sludge tank, and detects the sludge at different depths of the sludge tank through the humidity detection module. Since the shallow-layer sludge is easier to dry, when the humidity detection module in the shallow layer detects that the humidity reaches the threshold, the tilting component is started. The electric push rod drives the movable rod to push the rotating shaft through the movable joint, so that the sludge tank tilts around the central axis, and the stroke of the movable rod is detected by the stroke sensor. When the movable rod moves to the stroke corresponding to the shallow-layer humidity detection module, it stops, that is, the sludge tank reaches the angle for dumping the dried shallow-layer sludge, and the shallow-layer sludge is dumped out. Similarly, the middle-layer and deep-layer sludge are dumped in the same way, which is beneficial to dispersedly and batchwise dry a large amount of sludge, is beneficial to segmentally dump the sludge according to different actual drying times, and is beneficial to greatly improve the sludge drying speed.

[0025] 2. Through the arrangement of the nested sleeve and the steam tubular component, when the sludge box is tilted, the connector of the conveying pipe pushes the movable sleeve to displace. The movable sleeve contracts through the return spring, causing the conveying pipe to separate from the movable sleeve through the connector. When the sludge box is tilted and then reset, the connector of the conveying pipe pushes the movable sleeve to displace, and the movable sleeve contracts through the return spring, causing the conveying pipe to enter the movable sleeve through the connector. This is beneficial for separating the guiding pipe and the conveying pipe when the sludge box is tilted, and for nesting and connecting the guiding pipe and the conveying pipe when the sludge box is tilted and reset.

[0026] 3. With the arrangement of four groups of steam tubular components, steam is sent into the conveying pipe through the guiding pipe, and then the steam is discharged from the bent bending conduit to contact the sludge in the sludge box. Due to the bending structure and the filter element structure, the sludge cannot enter the conveying pipe. The steam is sent into the sludge box by several bending conduits. The flow of the steam can break the bonding force between sludge particles, making it easier for moisture to volatilize. The four conveying pipes can make the heat of the steam contact the sludge in the sludge box more evenly. At the same time, the moisture carried by the steam and the condensed water of the steam are discharged through the water holes, which is beneficial for making the sludge in the sludge box contact the heat more evenly and for reducing the influence of the moisture generated by the steam on the dried sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is an overall external schematic diagram of a steam generating device for a new type of sludge drying provided by the present invention;

[0028] Figure 2 is a schematic diagram of the sludge box of a steam generating device for a new type of sludge drying provided by the present invention;

[0029] Figure 3 is an overall external schematic diagram of the steam generating component of a steam generating device for a new type of sludge drying provided by the present invention;

[0030] Figure 4 is a nested schematic diagram of the nested sleeve and the steam tubular component of a steam generating device for a new type of sludge drying provided by the present invention;

[0031] Figure 5 is a schematic diagram of the nested sleeve of a steam generating device for a new type of sludge drying provided by the present invention;

[0032] Figure 6 is an overall internal schematic diagram of a steam generating device for a new type of sludge drying provided by the present invention;

[0033] Figure 7 is a schematic diagram of the tilting assembly of a steam generating device for a new type of sludge drying provided by the present invention;

[0034] Figure 8 is a schematic diagram of the tilting of the sludge box of a steam generating device for a new type of sludge drying provided by the present invention.

[0035] The reference numerals are as follows: 1, housing; 11, discharge port; 2, sludge pipe; 3, sludge tank; 31, steam tubular component; 311, adapter; 312, delivery pipe; 313, filter element; 314, bent conduit; 315, water passage hole; 32, humidity detection module; 33, guiding hopper; 4, base; 41, central axis; 5, tipping assembly; 51, hydraulic push rod; 52, stroke sensor; 53, movable rod; 54, rotating shaft; 55, movable joint; 6, steam generating component; 61, air booster pump; 62, steam tank; 63, exhaust pipe; 64, guiding pipe; 65, nested sleeve; 651, pipe seat; 652, return spring; 653, movable sleeve; 7, exhaust fan. Detailed implementation manners

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1

[0038] A steam generating device for a new type of sludge drying, comprising a housing 1, a sludge pipe 2 is arranged above the housing 1, a feeding pipe is arranged at equal intervals on the sludge pipe 2 corresponding to the sludge tank 3, and external sludge is connected to the corresponding feeding pipe through a sludge pump, and is sent into the sludge tank 3 through the feeding pipe by the sludge pump. One feeding pipe corresponds to one sludge tank 3, and an electric control valve can be installed on a single feeding pipe to control the opening time and stop opening after the sludge tank 3 is full;

[0039] Segmented tipping type sludge tanks 3 are arranged at equal intervals inside the housing 1. A base 4 is installed at the bottom of the sludge tank 3, and a central axis 41 for tipping the sludge tank 3 is installed on one side of the base 4. The front side of the bottom surface of the sludge tank 3 is placed on the base 4, and the sludge tank 3 rotates through the central axis 41 in the middle of its bottom surface. Humidity detection modules 32 are arranged at equal intervals on the side wall of the sludge tank 3 according to the depth. The humidity detection module 32 is a humidity sensor. The humidity sensor utilizes the hygroscopic properties of materials, such as humidity-sensitive resistors and humidity-sensitive capacitors. When water molecules come into contact with the humidity-sensitive material, its conductivity or dielectric constant will change;

[0040] A steam generating component 6 is installed on the left side inside the housing 1. The steam generating component 6 mainly consists of three major parts: a combustion system, a furnace body, and a condenser. The combustion system is responsible for providing heat energy. The condenser is mainly used for preheating the inlet water and releasing waste heat and latent heat, and reducing the exhaust gas temperature again, so that the heat generated by the combustion of the gas can be fully utilized;

[0041] The steam drum 62 is composed of a boiler drum, headers, fire tubes, furnace drums, etc. Feed water is heated to a certain temperature in the heater, enters the economizer through the feed water pipe, is further heated and then sent into the boiler drum. After mixing with the boiler water, it descends along the downcomer to the inlet header of the water wall. Water absorbs the radiant heat in the furnace in the water wall tubes to form a steam-water mixture, which reaches the boiler drum through the riser tubes. The water and steam are separated by the steam-water separation device. The separated saturated steam flows from the upper part of the boiler drum to the superheater, continues to absorb heat and becomes superheated steam at 450 °C, and then is sent to the steam turbine to send out the steam.

[0042] The exhaust pipe 63 of the steam generating component 6 is respectively provided with a guiding pipe 64 corresponding to the sludge tank 3. The steam is guided through the guiding pipe 64, and the end of the guiding pipe 64 is connected to the corresponding conveying pipe 312 through a nested pipe 65.

[0043] The outer wall of the socket 651 of the nested pipe 65 is slidably installed with a movable sleeve 653. A return spring 652 for elastic nesting is arranged between the movable sleeve 653 and the socket 651.

[0044] The movable sleeve 653 is movably nested on the outer wall of the socket 651, and the return spring 652 is stretched so that the movable sleeve 653 is always in an unfolded state.

[0045] Steam tube components 31 are equidistantly arranged inside the sludge tank 3. Bending ducts 314 are evenly arranged inside the conveying pipe 312 of the steam tube component 31. The steam generated by the steam generating component 6 sequentially passes through the exhaust pipe 63, the guiding pipe 64, the nested pipe 65, the conveying pipe 312 and the bending duct 314 and is sent into the sludge tank 3. The top of the conveying pipe 312 is provided with a connection head 311 that matches the slidably nested nested pipe 65. A water drainage hole 315 is opened at the bottom of the conveying pipe 312. The moisture carried by the steam and the condensed water of the steam are discharged through the water drainage hole 315.

[0046] The connection head 311 is in the shape of a triangular plate with an oval mouth. When the sludge tank 3 is tilted, the connection head 311 of the conveying pipe 312 pushes the movable sleeve 653 to displace. The movable sleeve 653 contracts through the return spring 652 so that the conveying pipe 312 disengages from the movable sleeve 653 through the connection head 311. When the sludge tank 3 starts to tilt, the conveying pipe 312 tilts along with the sludge tank 3, so that the movable sleeve 653 rises from the inside along the inclined edge of the connection head 311 to the highest point. The rising of the movable sleeve 653 pushes the return spring 652 to contract. The movable sleeve 653 rises along the socket 651 under the condition that the return spring 652 contracts. After the movable sleeve 653 reaches the highest point of the connection head 311, the movable sleeve 653 then disengages from the range of the conveying pipe 312.

[0047] When the sludge box 3 is reset after dumping, the connector 311 of the delivery pipe 312 pushes the movable sleeve 653 to displace. The movable sleeve 653 contracts through the return spring 652, enabling the delivery pipe 312 to enter the movable sleeve 653 through the connector 311.

[0048] When the sludge box 3 finishes dumping and starts to reset, the delivery pipe 312 follows the reset of the sludge box 3, causing the movable sleeve 653 to rise along the inclined edge of the connector 311 from the outside until the highest point. The rising of the movable sleeve 653 pushes the return spring 652 to contract. The movable sleeve 653 rises along the pipe seat 651 under the condition that the return spring 652 contracts. After the movable sleeve 653 reaches the highest point of the connector 311, the movable sleeve 653 enters the range of the delivery pipe 312.

[0049] On both sides of the outer wall of each sludge box 3, a dumping assembly 5 is provided. The dumping assembly 5 includes a hydraulic push rod 51. The end of the movable rod 53 of the hydraulic push rod 51 is connected to the outer shaft of the corresponding rotating shaft 54 through a movable joint 55. The inner shaft of the rotating shaft 54 is fixed to the outer wall of the sludge box 3. By starting the hydraulic push rod 51, the movable rod 53 is unfolded. The end of the movable rod 53 is connected to the outer shaft of the rotating shaft 54 through the movable joint 55. The movable joint 55 is specifically a single plate provided at the end of the movable rod 53, and a double plate is provided on the outer wall of the outer shaft of the rotating shaft 54. The single plate is clamped between the corresponding double plates and penetrated by bolts. The inner shaft of the rotating shaft 54 is fixed at the center position of the outer wall of the sludge box 3, and the outer shaft of the rotating shaft 54 rotates around the inner shaft.

[0050] The hydraulic push rod 51 is internally provided with a stroke sensor 52. By detecting the stroke value of the movable rod 53 inside the hydraulic push rod 51 through the stroke sensor 52, a capacitive stroke sensor 52 can be used, which measures the displacement of an object or device by using the electric field formed between two parallel metal plates with a certain distance between them.

[0051] Each humidity detection module 32 corresponds to the segmented stroke signal of the stroke sensor 52. The drying signal of any humidity detection module 32 starts the hydraulic push rod 51 and makes it move to the position corresponding to the segmented stroke signal of the stroke sensor 52.

[0052] The sludge box 3 is divided into three parts: shallow layer, middle layer, and deep layer according to the depth. Three humidity detection modules 32 are respectively provided corresponding to the three parts of the sludge box 3.

[0053] The accumulated sludge is dispersed and dried through the sludge tank 3. The humidity detection module 32 detects the sludge at different depths in the sludge tank 3. Shallow-layer sludge is easier to dry because it is easier to contact the externally flowing air. At the same time, steam is sent into the conveying pipe 312 from top to bottom. Shallow-layer sludge is the part that first contacts the heat of the steam. The steam transported to the deep-layer sludge needs to pass through the shallow-layer sludge before volatilizing into the air when passing through the deep-layer sludge. This also means that the amount of steam gas passing through the shallow-layer sludge is the largest. Therefore, shallow-layer sludge is often easier to dry than middle-layer and deep-layer sludge.

[0054] When the shallow-layer humidity detection module 32 detects that the humidity reaches the threshold value, the dumping component 5 is activated. The electric push rod drives the movable rod 53 to push the rotating shaft 54 through the movable joint 55, causing the sludge tank 3 to tilt around the central axis 41. The stroke sensor 52 detects the stroke of the movable rod 53 and stops when the movable rod 53 moves to the stroke corresponding to the shallow-layer humidity detection module 32, that is, the sludge tank 3 reaches the angle for dumping the dried shallow-layer sludge, and the shallow-layer sludge is dumped out. Similarly, the dumping methods for middle-layer and deep-layer sludge are the same.

[0055] It should be noted that after the shallow-layer sludge is dumped, the bent conduit 314 originally in the shallow layer still discharges steam, and the heat of the steam can increase the temperature of the air above the exposed middle-layer sludge, improving the drying speed of the middle-layer sludge.

[0056] When the dumping component 5 is activated, that is, when the stroke value of the stroke sensor 52 of the hydraulic push rod 51 > 0, the air booster pump 61 of the steam generating component 6 pauses. When the dumping component 5 is reset, that is, when the stroke value of the stroke sensor 52 of the hydraulic push rod 51 = 0, the air booster pump 61 of the steam generating component 6 starts.

[0057] Preferably, four groups of the steam tubular components 31 are arranged inside the sludge tank 3, and four groups of the guide pipes 64 are correspondingly arranged for the four groups of the steam tubular components 31. Steam enters the steam tubular components 31 through the guide pipes 64, and the temperature of the steam is absorbed by the steam tubular components 31, and then the heat is transferred to the sludge. The heat of the steam tubular components 31 can dry the sludge.

[0058] Preferably, one side of the bent conduit 314 is bent upward at the opening, and a filter element 313 is installed at the upward-bent part of the bent conduit 314. The other side opening of the bent conduit 314 is located on the outer wall of the conveying pipe 312.

[0059] The bent upward bent conduit 314 can prevent sludge from flowing back into the delivery pipe 312. Furthermore, the filter element 313 blocks the microorganisms and organic matter in the sludge from entering the delivery pipe 312, preventing the microorganisms and organic matter in the sludge from flowing back into the delivery pipe 312.

[0060] Preferably, an air booster pump 61 is installed on the top of the steam tank 62 of the steam generating component 6. The air inlet and outlet of the air booster pump 61 are both connected to the exhaust pipe 63. By means of the air booster pump 61, the flow rate and air pressure of the steam are increased, so that the steam is quickly discharged from the bent conduit 314. The steam is sent into the sludge tank 3 by a plurality of bent conduits 314. The flow of the steam can break the bonding force between sludge particles, making it easier for moisture to volatilize.

[0061] Preferably, a discharge port 11 is provided on the outer wall of the housing 1 corresponding to the dumping side of the sludge tank 3. The number and position of the discharge ports 11 correspond one-to-one to the number and position of the sludge tanks 3. A guiding hopper 33 is provided on the dumping side of the sludge tank 3. When the sludge tank 3 is dumped, the sludge in the sludge tank 3 is poured out through the guiding hopper 33, and the sludge tank 3 extends out of the discharge port 11 to pour out the sludge.

[0062] An exhaust fan 7 is provided on the top wall of the housing 1 corresponding to the sludge tank 3, and two exhaust fans 7 are correspondingly provided on the top of a single sludge tank 3.

[0063] The exhaust fan 7 quickly discharges the air in the housing 1, and the air containing moisture is quickly carried away. At the same time, it also accelerates the air flow inside the housing 1, making the drying of the sludge surface faster.

[0064] Working principle: External sludge is fed through a sludge pump corresponding to the sludge pipe 2, and the sludge enters the sludge tank 3 through the feeding pipe of the sludge pipe 2.

[0065] By starting the steam generating component 6, the combustion system in its steam tank 62 provides heat, and the feed water is heated to a certain temperature in the heater. The saturated steam flows from the upper part of the steam tank 62 to absorb heat and becomes superheated steam at 450 °C. This steam is sent into the sludge tank 3 through the exhaust pipe 63, and the air booster pump 61 increases the flow rate of the steam.

[0066] Steam sequentially passes through the exhaust pipe 63, the guide pipe 64, the nested pipe 65, the delivery pipe 312, and the bent conduit 314 and is sent into the sludge tank 3. The steam is sent into the delivery pipe 312 through the guide pipe 64. Then, the steam is discharged from the bent bent conduit 314 to contact the sludge in the sludge tank 3. Due to its bent structure and the structure of the filter element 313, the sludge cannot enter the delivery pipe 312. At the same time, the steam can quickly increase the temperature of the delivery pipe 312, and the temperature of the delivery pipe 312 is transferred to the sludge in the sludge tank 3, thereby quickly volatilizing the moisture in the sludge by using the temperature. The four groups of delivery pipes 312 can make the heat of the steam contact the sludge in the sludge tank 3 more evenly. At the same time, the moisture carried by the steam and the condensate water of the steam will appear in the delivery pipe 312 and be discharged through the water drain hole 315.

[0067] The steam is sent into the sludge tank 3 by several bent conduits 314. The flow of the steam can break the bonding force between the sludge particles, making it easier for the moisture to volatilize.

[0068] The accumulated sludge is dispersed and dried through multiple sludge tanks 3. The humidity detection module 32 detects the sludge at different depths in the sludge tank 3. Since the shallow-layer sludge is easier to dry, when the humidity detection module 32 in the shallow layer detects that the humidity reaches the threshold, the dumping component 5 is started. The electric push rod drives the movable rod 53 to push the rotating shaft 54 through the movable joint 55, so that the sludge tank 3 tilts around the central axis 41. When the sludge tank 3 tilts, the connector 311 of the delivery pipe 312 pushes the movable sleeve 653 to displace. The movable sleeve 653 contracts through the return spring 652, so that the delivery pipe 312 disengages from the movable sleeve 653 through the connector 311, and the stroke of the movable rod 53 is detected by the stroke sensor 52. When the movable rod 53 moves to the stroke corresponding to the shallow-layer humidity detection module 32, it stops, that is, the sludge tank 3 reaches the angle for dumping the dried shallow-layer sludge, and the shallow-layer sludge is dumped out. Similarly, the dumping methods for the middle-layer and deep-layer sludge are the same. When the sludge tank 3 is reset after tilting, the connector 311 of the delivery pipe 312 pushes the movable sleeve 653 to displace. The movable sleeve 653 contracts through the return spring 652, so that the delivery pipe 312 enters the movable sleeve 653 through the connector 311. The steam continues to be sent into the sludge tank 3 through the exhaust pipe 63, the guide pipe 64, the nested pipe 65, the delivery pipe 312, and the bent conduit 314.

[0069] The above are only embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included within the patent protection scope of the present invention.

Claims

1. A steam generating device for sludge drying, comprising a shell (1), a sludge pipe (2) being arranged above the shell (1), a feeding pipe being arranged equidistantly in the sludge pipe (2) and corresponding to a sludge box (3), a segmented dumping type sludge box (3) being arranged equidistantly inside the shell (1), a base (4) being installed at the bottom of the sludge box (3), characterized in that: A central axis (41) for dumping the sludge box (3) is installed on one side of the base (4), and humidity detection modules (32) are arranged at equal intervals on the side walls of the sludge box (3) according to the depth; The sludge box (3) is divided into three parts according to the depth, namely, a shallow layer, a middle layer and a deep layer, and three humidity detection modules (32) are respectively arranged in the sludge box (3) corresponding to the three parts; A steam generating component (6) is installed on the left side of the shell (1); the exhaust pipe (63) of the steam generating component (6) is provided with a guide pipe (64) corresponding to the sludge box (3); the end of the guide pipe (64) is connected to the corresponding delivery pipe (312) via a nested pipe (65); Steam tubular components (31) are arranged at equal intervals inside the sludge box (3), and bent conduits (314) are evenly arranged inside the delivery pipe (312) of the steam tubular component (31). The steam generated by the steam generating component (6) is sequentially delivered into the sludge box (3) through the exhaust pipe (63), the guide pipe (64), the nested pipe (65), the delivery pipe (312) and the bent conduit (314). A connector (311) matching the sliding nested nested pipe (65) is arranged at the top of the delivery pipe (312), and a water discharge hole (315) is provided at the bottom of the delivery pipe (312); Each sludge box (3) is provided with a dumping assembly (5) on both sides of the outer wall. The dumping assembly (5) comprises a hydraulic push rod (51). The hydraulic push rod (51) has a built-in stroke sensor (52). Each humidity detection module (32) corresponds to a segmented stroke signal of a stroke sensor (52), and a drying signal of any humidity detection module (32) activates a hydraulic push rod (51) to move it to a position corresponding to the segmented stroke signal of the stroke sensor (52); A movable sleeve (653) is slidably mounted on the outer wall of the tube seat (651) of the nested tube (65), and a return spring (652) for elastic nesting is arranged between the movable sleeve (653) and the tube seat (651).

2. A steam generating device for sludge drying according to claim 1, characterized in that: Four groups of steam tubular components (31) are arranged inside the sludge box (3), and four groups of guide pipes (64) are arranged corresponding to the four groups of steam tubular components (31).

3. A steam generating device for sludge drying according to claim 1, characterized in that: One side opening of the bent conduit (314) is bent upward, and a filter element (313) is installed at the bent upward portion of the bent conduit (314), and the other side opening of the bent conduit (314) is located on the outer wall of the delivery pipe (312).

4. A steam generating device for sludge drying according to claim 1, characterized in that: The connector (311) is in the shape of a triangular plate extending along the circular mouth. When the sludge box (3) is tilted, the connector (311) of the delivery pipe (312) pushes the movable sleeve (653) to move. The movable sleeve (653) contracts through the return spring (652) so that the delivery pipe (312) passes through the connector (311) and is separated from the movable sleeve (653).

5. A steam generating device for sludge drying according to claim 1, characterized in that: The connector (311) is in the shape of a triangular plate extending along the circular mouth. When the sludge box (3) is reset after being tilted, the connector (311) of the delivery pipe (312) pushes the movable sleeve (653) to move. The movable sleeve (653) contracts through the reset spring (652) so that the delivery pipe (312) passes through the connector (311) and enters the movable sleeve (653).

6. A steam generating device for sludge drying according to claim 1, characterized in that: An air booster pump (61) is installed on the top of the steam tank (62) of the steam generating component (6), and the air inlet and the air outlet of the air booster pump (61) are both connected to the exhaust pipe (63).

7. A steam generating device for sludge drying according to claim 1, characterized in that: The end of the movable rod (53) of the hydraulic push rod (51) is connected to the outer axis of the corresponding rotating shaft (54) through a movable joint (55), and the inner axis of the rotating shaft (54) is fixed to the outer wall of the sludge box (3).

8. A steam generating device for sludge drying according to claim 1, characterized in that: A discharge port (11) is provided on the outer wall of the shell (1) corresponding to the dumping side of the sludge box (3), and the number and position of the discharge ports (11) correspond to the number and position of the sludge box (3). A guide bucket (33) is provided on the dumping side of the sludge box (3); An exhaust fan (7) is provided on the top wall of the shell (1) corresponding to the sludge box (3), and two exhaust fans (7) are provided on the top of a single sludge box (3).

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