Sludge dewatering machine

Abstract

The utility model relates to the technical field of sludge treatment, and discloses a sludge dewatering machine which comprises a sludge input assembly, a sludge dewatering assembly and a sludge dewatering assembly, and the sludge input assembly comprises a feeding cylinder; the sludge dewatering assembly comprises a front chamber, a filter cloth sleeve and a rear chamber, water outlet holes are densely distributed in the filter cloth sleeve, the two ends of the filter cloth sleeve are connected with the front chamber and the rear chamber respectively, the front chamber, the filter cloth sleeve and the rear chamber jointly form a water filtering cavity, and a sludge outlet is formed in the side, away from the filter cloth sleeve, of the rear chamber; wherein the front chamber is connected with the sludge input assembly; a conditioner is arranged in the agent injection device, the agent injection device is used for injecting the conditioner into the feeding barrel, the stirring part is arranged in the feeding barrel, and the stirring part is used for mixing and stirring the sludge and the conditioner. The sludge dewatering machine is short in drying period and low in drying cost.

Description

Technical Field

[0001] The present application relates to the field of sludge treatment, and in particular to a sludge dewatering machine. Background Art

[0002] Municipal sludge is an inevitable product of the sewage treatment industry. Currently, municipal sludge is typically initially dewatered in sewage treatment plants. Initial dewatering involves reducing the sludge moisture content to approximately 80% through centrifugal dewatering or belt dewatering. After initial dewatering, secondary dewatering is required. Secondary dewatering methods primarily include plate and frame filter pressing, steam drying, and biological drying.

[0003] However, the existing secondary sludge dehydration has the problems of long drying cycle and high drying cost. Utility Model Content

[0004] The present application mainly solves the technical problems of the prior art in that the secondary dehydration and drying cycle of sludge is long and the drying cost is high, and provides a sludge dehydrator with a short drying cycle and low drying cost.

[0005] In order to solve the above technical problems, the present application provides a sludge dewatering machine, characterized in that the sludge dewatering machine includes:

[0006] A sludge input assembly, the sludge input assembly comprising a feed cylinder;

[0007] The sludge dewatering assembly includes a front chamber, a filter cloth sleeve and a rear chamber. The filter cloth sleeve is densely covered with water outlet holes. The two ends of the filter cloth sleeve are respectively connected to the front chamber and the rear chamber. The front chamber, the filter cloth sleeve and the rear chamber together form a water filtration cavity. The rear chamber is provided with a mud outlet on the side away from the filter cloth sleeve; wherein,

[0008] The front chamber is connected to the sludge input component;

[0009] A reagent injection device and a stirring member, wherein the reagent injection device contains a conditioner and is used to inject the conditioner into the feed barrel. A stirring member is provided in the feed barrel and is used to mix and stir the sludge and the conditioner.

[0010] In one embodiment, the sludge dewatering component further includes:

[0011] A top plate and a first driving member, wherein the top plate is arranged on one side of the mud outlet along a first direction, the first driving member is connected to the top plate, and the first driving member is used to drive the top plate to move closer to or away from the mud outlet to open or close the mud outlet.

[0012] In one embodiment, the sludge dewatering machine further comprises:

[0013] A support assembly, wherein the support assembly includes a plurality of fixed rings and movable rings, wherein the plurality of fixed rings are sleeved outside the filter cloth sleeve at intervals along a first direction, and the movable ring is sleeved outside the filter cloth sleeve, and the movable ring is located between two fixed rings. The fixed ring is fixed relative to the front chamber and / or the rear chamber. When the sludge passes through the filter cloth sleeve, it drives the filter cloth sleeve and the movable ring to move. The support assembly forms a rigid support for the filter cloth sleeve, and the movable ring forms a disturbance on the outer surface of the filter cloth sleeve.

[0014] In one embodiment, the support assembly further includes:

[0015] A water filter housing and a fixing rod, wherein the water filter housing is sleeved outside the water filter cavity, the water filter housing is connected to the front chamber and / or the rear chamber, the fixing rod is arranged in the area between the water filter cavity and the water filter housing along the first direction, the fixing rod is connected to the water filter housing, the fixed ring is fixedly connected to the fixing rod, the movable ring is slidably connected to the fixing rod, and a water outlet is provided on the water filter housing.

[0016] In one embodiment, the distance between the two fixed rings is a first distance, and the first distance is gradually reduced from the front chamber to the rear chamber.

[0017] In one embodiment, an elastic member is provided between the movable ring and the adjacent fixed ring, and the elastic member is used to drive the movable ring to move in a direction away from the rear chamber.

[0018] In one embodiment, the sludge input assembly includes a plunger pump, a mud inlet valve and a mud outlet valve. A mud injection cavity is provided in the plunger pump, and the mud injection cavity is connected to the mud inlet valve and the mud outlet valve respectively. The mud outlet valve is connected to the front chamber through a mud outlet rod.

[0019] In one embodiment, the feed cylinder is connected to the mud injection cavity via a mud inlet valve.

[0020] In one embodiment, the plunger pump includes a mud injection housing, a plunger rod and a second driving member, the mud injection cavity is located in the mud injection housing, the plunger rod is connected to the second driving member, the plunger rod is arranged in the mud injection housing along a first direction, and the second driving member is used to drive the plunger rod to move closer to or away from the mud outlet valve and the mud inlet valve; wherein,

[0021] When the plunger rod moves away from the mud outlet valve and the mud inlet valve, the mud inlet valve opens and the mud outlet valve closes, the volume of the mud injection cavity increases, and the sludge enters the mud injection cavity through the mud inlet valve;

[0022] When the plunger moves close to the mud outlet valve and the mud inlet valve, the mud inlet valve is closed and the mud outlet valve is opened, the volume of the mud injection cavity is reduced, and the sludge enters the front chamber in a high-pressure state through the mud outlet valve.

[0023] In one embodiment, the sludge dewatering component further includes:

[0024] A conical rod is arranged in the water filter cavity along a first direction, an extrusion cavity is formed between the conical rod and the filter cloth sleeve, the conical rod is connected to the front chamber and / or the rear chamber, and the cross section of the conical rod is gradually increased from the front chamber to the rear chamber.

[0025] Compared with the existing technology, the sludge input component pumps the sludge into the water filter cavity at high pressure, and the filter cloth sleeve filters out the moisture in the sludge to achieve mechanical drying of the sludge, shorten the sludge drying cycle, and reduce the sludge drying cost.

[0026] Therefore, the present invention has the characteristics of reasonable structure and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attachment Figure 1 This is a structural diagram of the sludge dewatering machine of the present application;

[0028] Attachment Figure 2 This is a structural diagram of the sludge dewatering component of this application.

[0029] Description of the numbers in the figure:

[0030] X, first direction; Y, second direction;

[0031] 100, sludge input assembly; 110, plunger pump; 111, mud injection housing; 112, plunger rod; 113, second drive member; 120, mud inlet valve; 130, mud outlet valve; 140, mud injection chamber; 150, mud outlet rod; 160, feed barrel;

[0032] 200, sludge dewatering assembly; 210, front chamber; 220, filter cloth sleeve; 230, rear chamber; 231, mud outlet; 240, top plate; 250, first driving member; 260, cone rod;

[0033] 300, support assembly; 310, fixed ring; 320, dynamic ring; 330, water filter housing; 340, fixing rod; 350, water outlet; 360, elastic member;

[0034] 400. Drug injection device;

[0035] 500. Mixing piece. DETAILED DESCRIPTION

[0036] In order to make the purpose, features, and advantages of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0037] The existing technology has the technical problems of long secondary dehydration and drying cycle of sludge and high drying cost.

[0038] To this end, the present application provides a sludge dewatering machine, characterized in that the sludge dewatering machine includes:

[0039] Sludge input assembly;

[0040] The sludge dewatering assembly includes a front chamber, a filter cloth sleeve and a rear chamber. The filter cloth sleeve is densely covered with water outlet holes. The two ends of the filter cloth sleeve are respectively connected to the front chamber and the rear chamber. The front chamber, the filter cloth sleeve and the rear chamber together form a water filtration cavity. The rear chamber is provided with a mud outlet on the side away from the filter cloth sleeve; wherein,

[0041] The front chamber is connected to the sludge input component.

[0042] Example 1:

[0043] In the existing technology, sludge is generally dehydrated to a moisture content of about 80% by centrifugal dehydration or belt dehydration technology, and then subjected to secondary dehydration by plate and frame filter pressing, steam drying and biological drying. The secondary dehydration method of plate and frame filter pressing requires further dilution of the sludge to a moisture content of about 93% before further squeezing and dehydration, so there are problems of large wastewater generation and high treatment costs. The secondary dehydration method of steam drying removes water from the sludge by means of steam heat exchange, but the cost of steam is high, so the cost of sludge drying is also high. The secondary dehydration method of biological drying technology utilizes the bioenergy generated by the biological metabolism and organic matter degradation during the high-temperature fermentation process of aerobic microorganisms as heat energy, and evaporates the water in the sludge under the action of strong ventilation to achieve dehydration and drying, so there is a problem of a long drying cycle.

[0044] Please refer to the attached Figure 1 and attached Figure 2As shown, the first direction X of the present application refers to the length direction of the sludge dewatering machine, that is, the direction from left to right or from right to left of the sludge dewatering machine. In the present application, the front chamber 210 is on the left and the rear chamber 230 is on the right. The second direction Y of the present application refers to the height direction of the sludge dewatering machine, that is, the direction from top to bottom or from bottom to top of the sludge dewatering machine. In the present application, the sludge input assembly 100 is on the top and the sludge dewatering assembly 200 is on the bottom.

[0045] Please refer to the attached Figure 1 and attached Figure 2 The figure shows a specific embodiment of the sludge dewatering machine of the present application. The sludge dewatering machine of the present application achieves secondary dewatering of sludge through a mechanized method. The sludge dewatering machine of the present application has a simple structure and is easy to manufacture. Therefore, using the sludge dewatering machine of the present application can reduce sludge drying costs. Furthermore, the sludge dewatering machine of the present application dries the sludge through high-pressure flow dehydration, which can shorten the sludge drying cycle.

[0046] Attachment Figure 1 This is a structural diagram of the sludge dewatering machine of this application. Please refer to the attached Figure 1 As shown, the sludge dewatering machine of the present application includes a sludge input component 100, which is used to input sludge into a sludge dewatering component 200 under high pressure to achieve secondary dewatering of the sludge.

[0047] Please refer to the attached Figure 1 As shown, the sludge input assembly 100 of the present application includes a plunger pump 110, a sludge inlet valve 120, and a sludge outlet valve 130. In this application, the plunger pump 110 works in conjunction with the sludge inlet valve 120 and the sludge outlet valve 130 to achieve high-pressure sludge transportation. A sludge injection chamber 140 is provided within the plunger pump 110. The sludge injection chamber 140 is connected to the sludge inlet valve 120 and the sludge outlet valve 130, respectively. The sludge outlet valve 130 and the sludge inlet valve 120 are respectively arranged on the upper and lower sides of the sludge injection chamber 140, and the sludge outlet valve 130 is arranged in a corresponding upper and lower position with the sludge inlet valve 120. Under the movement of the plunger pump 110, the sludge inlet valve 120 and the sludge outlet valve 130 can be in two states: closed or open. When the sludge inlet valve 120 is open, sludge enters the sludge injection chamber 140. When the sludge outlet valve 130 is open, sludge is discharged from the sludge injection chamber 140. In the present application, the mud outlet valve 130 and the mud inlet valve 120 are both one-way valves. During operation, one of the mud outlet valve 130 and the mud inlet valve 120 will be opened, that is, when the mud outlet valve 130 is opened, the mud inlet valve 120 is closed, and when the mud inlet valve 120 is opened, the mud outlet valve 130 is closed.

[0048] In one embodiment, the mud inlet valve 120 is located at the upper side of the mud injection cavity 140 , and the mud outlet valve 130 is located at the lower side of the mud injection cavity 140 .

[0049] In one embodiment, the plunger pump 110 is a high-pressure plunger pump, and the output pressure of the plunger pump 110 is greater than 15 MPa.

[0050] In one embodiment, the plunger pump 110 includes a mud injection housing 111, a plunger rod 112, and a second driving member 113. A mud injection chamber 140 is located within the mud injection housing 111. The plunger rod 112 is disposed within the mud injection housing 111 along a first direction X. The first end of the plunger rod 112 is connected to the second driving member 113, and the second end of the plunger rod 112 interacts with the mud injection chamber 140 to adjust the pressure within the mud injection chamber 140. The second driving member 113 is used to drive the plunger rod 112 toward or away from the mud outlet valve 130 and the mud inlet valve 120. When the plunger rod 112 moves away from the mud outlet valve 130 and the mud inlet valve 120, the volume of the mud injection chamber 140 increases, and a negative pressure is formed within the mud injection chamber 140. At this time, the mud inlet valve 120 opens and the mud outlet valve 130 closes, and sludge enters the mud injection chamber 140 through the mud inlet valve 120. When the plunger rod 112 moves toward the mud outlet valve 130 and the mud inlet valve 120, the mud injection chamber 140 is compressed, the volume of the mud injection chamber 140 decreases, and the pressure in the mud injection chamber 140 increases. At this time, the mud inlet valve 120 closes and the mud outlet valve 130 opens, and the sludge flows out of the mud injection chamber 140 at a high flow rate through the mud outlet valve 130. Furthermore, the sludge input assembly 100 of the present application can be equipped with multiple sets of plunger pumps 110 to increase the sludge flow rate. The number of plunger pumps 110 in the sludge input assembly 100 depends only on the required sludge flow rate from the mud injection chamber 140. Any number of plunger pumps 110 in the sludge input assembly 100 is within the scope of protection of the present application.

[0051] The second driving member 113 includes a crankshaft connecting rod, a crosshead, and a power element. The power element is connected to the crankshaft connecting rod, which is connected to the plunger rod 112 via the crosshead. The crankshaft connecting rod converts the rotational motion of the power element into forward and backward motion of the plunger rod 112 along the first direction X. Furthermore, the power element is an electric motor or an internal combustion engine.

[0052] Please refer to the attached Figure 1 As shown, the sludge input assembly 100 of the present application further includes a feed barrel 160, which is connected to the mud injection cavity 140 via the mud inlet valve 120. The feed barrel 160 is provided to temporarily store sludge so that when the mud inlet valve 120 is opened, the sludge can flow directly from the feed barrel 160 into the mud injection cavity 140. The first end of the feed barrel 160 is connected to the mud inlet valve 120, and the second end of the feed barrel 160 is provided with an opening, through which the sludge enters the feed barrel 160.

[0053] In one embodiment, the cross-sectional area of the feeding cylinder 160 is gradually reduced from the second end to the first end to form a guide for the sludge, thereby facilitating the sludge to flow into the sludge injection cavity 140 .

[0054] Please refer to the attached Figure 1As shown, the sludge dewatering machine of the present application also includes a chemical injection device 400 and a stirring element 500. The chemical injection device 400 contains a conditioning agent, which includes quicklime and PAM. The mixing of the conditioning agent and the sludge can increase the sludge drying rate. The chemical injection device 400 continuously injects the conditioning agent into the feed barrel 160 in a timed and quantitative manner. The stirring element 500 is disposed within the feed barrel 160 and rotates to mix and stir the sludge and conditioning agent.

[0055] In one embodiment, the reagent injection device 400 is disposed at the opening of the feed barrel 160. The reagent injection device 400 and the stirring element 500 are disposed above and below each other, thereby facilitating the stirring element 500's mixing of the sludge and the conditioning agent. Furthermore, the stirring element 500 includes a drive device and stirring blades. The stirring blades are connected to the feed barrel 160 via the drive device, and the drive device drives the stirring blades to rotate within the feed barrel 160.

[0056] Please refer to the attached Figure 1 As shown, the sludge dewatering machine of the present application also includes a sludge dewatering assembly 200, which includes a front chamber 210, a filter cloth sleeve 220, and a rear chamber 230. The filter cloth sleeve 220 is densely covered with water outlet holes. When the sludge passes through the filter cloth sleeve 220 under high pressure, mud and water are separated. The front chamber 210 and the rear chamber 230 are respectively arranged on both sides of the filter cloth sleeve 220. The front chamber 210 and the rear chamber 230 are respectively provided with openings on the side of the filter cloth sleeve 220 near the filter cloth sleeve 220. The front chamber 210, the rear chamber 230, and the filter cloth sleeve 220 are each provided with a cavity for accommodating sludge. The filter cloth sleeve 220 is connected to the front chamber 210 and the rear chamber 230 respectively. The cavities in the front chamber 210 and the rear chamber 230 are connected to the cavity in the filter cloth sleeve 220 through the openings, thereby forming a water filtration cavity. Furthermore, because the plunger pump 110 is a high-pressure plunger pump, the sludge input into the water filter chamber is also in a high-pressure state, and the high-pressure sludge flows within the water filter chamber. Furthermore, when the high-pressure sludge flows through the filter cloth sleeve 220, due to the high pressure of the sludge, the high-pressure sludge will be squeezed between the filter cloth sleeve 220, thereby achieving the separation of mud and water. The moisture in the sludge further seeps through the filter cloth sleeve 220, and the filter cloth sleeve 220 will deform under the squeezing of the high-pressure sludge. When the sludge is squeezed against the filter cloth sleeve 220, some of the sludge will remain on the filter cloth sleeve 220, thereby affecting the sludge flow rate and the sludge water output rate. A mud outlet 231 is provided on the side of the rear chamber 230 away from the filter cloth sleeve 220, and the sludge is discharged from the mud outlet 231 after dehydration.

[0057] The front chamber 210 is connected to the sludge input assembly 100. Further, the front chamber 210 is connected to the sludge discharge valve 130 via the sludge discharge rod 150. The sludge discharge rod 150 is used to introduce sludge from the sludge injection cavity 140 into the front chamber 210.

[0058] In one embodiment, the front chamber 210 and the rear chamber 230 are both made of hard materials, thereby ensuring the stability of the sludge when it is input into or output from the water filtration cavity.

[0059] In one embodiment, the filter cloth cover 220 is made of woven fabric to ensure flexibility and the provision of water outlet holes while also ensuring the service life of the filter cloth cover 220 .

[0060] In one embodiment, the filter cloth cover 220 is connected to the front chamber 210 and the rear chamber 230 by gluing or clamping.

[0061] Please refer to the attached Figure 1 As shown, in the present application, the sludge dewatering assembly 200 further includes a top plate 240 and a first driving member 250. The top plate 240 is disposed on one side of the mud outlet 231 along the first direction X. The first driving member 250 is connected to the top plate 240. The first driving member 250 drives the top plate 240 to move toward or away from the mud outlet 231 to open or close the mud outlet 231. Furthermore, the first driving member 250 drives the top plate 240 to move toward the mud outlet 231 until the top plate 240 and the mud outlet 231 abut against each other, and the mud outlet 231 is closed by the top plate 240. When the first driving member 250 drives the top plate 240 to move away from the mud outlet 231, the mud outlet 231 is opened.

[0062] Furthermore, when the sludge in the water filter cavity completes secondary dehydration, the sludge outlet 231 is opened to discharge the dried sludge.

[0063] In one embodiment, the area of the top plate 240 is larger than the area of the mud outlet 231. Furthermore, the projection of the top plate 240 on the mud outlet 231 along the first direction X completely covers the mud outlet 231 to avoid a gap when the top plate 240 and the mud outlet 231 abut against each other.

[0064] In one embodiment, the first driving member 250 is composed of a driving motor or a hydraulic cylinder.

[0065] Please refer to the attached Figure 1As shown, the sludge dewatering machine of the present application further includes a support assembly 300, which is used to disturb the surface of the filter cloth cover 220 along a first direction to prevent sludge from adhering to the surface of the filter cloth cover 220, thereby improving the dewatering efficiency. At the same time, the provision of the support assembly 300 can further enhance the rigidity of the filter cloth cover 220 to increase the service life of the filter cloth cover 220. The support assembly 300 of the present application includes a plurality of fixed rings 310 and movable rings 320. The fixed rings 310 are fixed relative to the front chamber 210 and / or the rear chamber 230, that is, the fixed rings 310 do not generate relative movement relative to the front chamber 210 and the rear chamber 230, and the movable rings 320 are not fixed relative to the front chamber 210 and / or the rear chamber 230, that is, the movable rings 320 generate relative movement relative to the front chamber 210 or the rear chamber 230. Several fixed rings 310 are spaced apart outside the filter cloth sleeve 220 along the first direction X, and the movable ring 320 is also spaced outside the filter cloth sleeve 220, and the movable ring 320 is located between the two fixed rings 310. The fixed relative position of the two fixed rings 310 further limits the movement space of the movable ring 320.

[0066] Furthermore, when sludge passes through the filter cloth sleeve 220, due to the high pressure and high flow rate, and because the filter cloth sleeve 220 is made of a flexible material, the sludge drives the filter cloth sleeve 220 to move. As the filter cloth sleeve 220 moves, the fixed ring 310 is fixed relative to the front chamber 210 and / or the rear chamber 230. Therefore, the fixed ring 310 remains fixed relative to the front chamber 210 and / or the rear chamber 230 even when the filter cloth sleeve 220 moves. However, the movable ring 320 is not fixed relative to the front chamber 210 and / or the rear chamber 230. Therefore, the movable ring 320 moves accordingly with the movement of the filter cloth sleeve 220. Simultaneously, the movable ring 320 disturbs the outer surface of the filter cloth sleeve 220, thereby detaching sludge adhered to the inner surface of the filter cloth sleeve 220. Simultaneously, the wastewater after sludge dewatering is discharged from the area between the fixed ring 310 and the movable ring 320. The movement of the filter cloth cover 220 means that the filter cloth cover 220 may swing up and down relative to the front chamber 210 and / or the rear chamber 230, or a portion of the filter cloth cover 220 may be convex or concave. The provision of the fixed ring 310 and the movable ring 320 limits the movement space of the filter cloth cover 220, further enhancing the rigidity of the filter cloth cover 220 and thereby extending the service life of the filter cloth cover.

[0067] Because the movable ring 320 is positioned between the two fixed rings 310, its range of motion is limited to the space between the two fixed rings 310. The movable ring 320 moves back and forth along the first direction X. The movable ring 320 is relatively small overall, so when driven by the filter cloth sleeve 220, it moves rapidly, further enhancing the sludge removal from the inner surface of the filter cloth sleeve 220. Due to the placement of the fixed ring 310, the movable ring 320 has a limited range of motion. Within this range, sludge adhering to the inner surface of the filter cloth sleeve 220 can be effectively removed, and no stacking occurs between the movable rings 320, thereby improving the sludge removal efficiency of various areas of the filter cloth sleeve 220.

[0068] In one embodiment, the gap between the fixed ring 310 and the filter cloth sleeve 220 is larger than the gap between the movable ring 320 and the filter cloth sleeve 220 , so as to reduce the influence of the fixed ring 310 on the movement of the filter cloth sleeve 220 .

[0069] In one embodiment, the distance between the two fixed rings 310 is a first distance, which gradually decreases from the front chamber 210 to the rear chamber 230. During sludge movement, the closer the sludge gets to the rear chamber 230, the greater the amount of sludge adheres to the inner surface of the filter cloth sleeve 220. Therefore, more dynamic rings 320 are required to disturb the filter cloth sleeve 220. As the first distance decreases, the density of the dynamic rings 320 increases.

[0070] Please refer to the attached Figure 1 As shown, the support assembly 300 of the present application also includes a water filter housing 330 and a fixing rod 340. The water filter housing 330 is sleeved outside the water filter cavity and connected to the front chamber 210 and / or the rear chamber 230. The fixing rod 340 is arranged in the area between the water filter cavity and the water filter housing along the first direction X. The fixing rod 340 is connected to the water filter housing 330, and the fixed ring 310 is fixedly connected to the fixing rod 340. The movable ring 320 is movably connected to the fixing rod 340. Specifically, a through hole is provided through the movable ring 320 along the first direction X, and the movable ring 320 is loosely fitted with the fixing member 340 through the through hole. A water outlet 350 is provided on the water filter cavity. The provision of the fixing rod 340 further facilitates the fixed connection of the fixed ring 310. The wastewater after sludge dewatering is collected by the water filter housing 330 and discharged through the water outlet 350.

[0071] In one embodiment, the water filter housing 330 is connected to both the front chamber 210 and the rear chamber 230 , and the water filter housing 330 completely encloses the filter cloth cover 220 .

[0072] In one embodiment, the fixing rod 340 is connected to two sides of the water filtering housing 330 along the first direction X.

[0073] Please refer to the attached Figure 1As shown, the support assembly 300 of the present application further includes an elastic member 360, which is disposed between the movable ring 320 and the adjacent fixed ring 310. The elastic member 360 is used to drive the movable ring 320 to move in a direction away from the rear chamber 230. During operation, the pressure of the sludge in the water filtration chamber fluctuates within a certain range. When the pressure of the sludge in the water filtration chamber is greater than the driving force of the elastic member 360, the sludge drives the movable ring 320 to move toward the rear chamber 230. When the pressure of the sludge in the water filtration chamber is less than the driving force of the elastic member 360, the elastic member 320 drives the movable ring to move toward the front chamber 210, thereby achieving back-and-forth movement of the movable ring 320 between the two fixed rings 310, thereby enhancing the disturbance of the sludge on the inner surface of the filter cloth sleeve 220 by the movable ring 320.

[0074] In one embodiment, the elastic member 360 includes a tension spring, a compression spring, or elastic rubber. When the elastic member 360 is a compression spring, the elastic member 360 is disposed between the dynamic ring 320 and the fixed ring 310 adjacent to the dynamic ring 320 and close to the rear chamber 230 .

[0075] Attachment Figure 2 This is a structural diagram of the sludge dewatering component 200 of the present application. Figure 2 As shown, the sludge dewatering assembly 200 further includes a tapered rod 260, which is disposed within the water filtration chamber along a first direction X. An extrusion chamber is formed between the tapered rod 260 and the filter cloth sleeve. The tapered rod 260 is connected to the front chamber 210 and / or the rear chamber 230. The cross-sectional area of the tapered rod 260 gradually increases from the front chamber 210 to the rear chamber 230, while the volume of the extrusion chamber gradually decreases from the front chamber 210 to the rear chamber 230. Furthermore, as the sludge moves within the water filtration chamber, it is squeezed by the tapered rod 260 toward the filter cloth sleeve 220, thereby enhancing the dewatering efficiency of the dewatering assembly. The volume of the extrusion chamber gradually decreases from the front chamber 210 to the rear chamber 230, achieving greater dewatering effectiveness the closer the sludge moves to the rear chamber 230.

[0076] In one embodiment, the tapered rod 260 is connected to an end surface of the front chamber 210 .

[0077] In one embodiment, the tapered rod 260 is a hollow structure.

[0078] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0080] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A sludge dewatering machine, characterized in that: The sludge dewatering machine comprises: A sludge input assembly, the sludge input assembly comprising a feed cylinder; The sludge dewatering assembly includes a front chamber, a filter cloth sleeve and a rear chamber. The filter cloth sleeve is densely covered with water outlet holes. The two ends of the filter cloth sleeve are respectively connected to the front chamber and the rear chamber. The front chamber, the filter cloth sleeve and the rear chamber together form a water filtration cavity. The rear chamber is provided with a mud outlet on the side away from the filter cloth sleeve; wherein, The front chamber is connected to the sludge input component; A reagent injection device and a stirring member, wherein the reagent injection device contains a conditioner and is used to inject the conditioner into the feed barrel. A stirring member is provided in the feed barrel and is used to mix and stir the sludge and the conditioner.

2. The sludge dewatering machine according to claim 1, characterized in that: The sludge dewatering component also includes: A top plate and a first driving member, wherein the top plate is arranged on one side of the mud outlet along a first direction, the first driving member is connected to the top plate, and the first driving member is used to drive the top plate to move closer to or away from the mud outlet to open or close the mud outlet.

3. The sludge dewatering machine according to claim 2, characterized in that: The sludge dewatering machine also includes: A support assembly, wherein the support assembly includes a plurality of fixed rings and movable rings, wherein the plurality of fixed rings are sleeved outside the filter cloth sleeve at intervals along a first direction, and the movable ring is sleeved outside the filter cloth sleeve, and the movable ring is located between two fixed rings. The fixed ring is fixed relative to the front chamber and / or the rear chamber. When the sludge passes through the filter cloth sleeve, it drives the filter cloth sleeve and the movable ring to move. The support assembly forms a rigid support for the filter cloth sleeve, and the movable ring forms a disturbance on the outer surface of the filter cloth sleeve.

4. The sludge dewatering machine according to claim 3, characterized in that: The support assembly further includes: A water filter housing and a fixing rod, wherein the water filter housing is sleeved outside the water filter cavity, the water filter housing is connected to the front chamber and / or the rear chamber, the fixing rod is arranged in the area between the water filter cavity and the water filter housing along the first direction, the fixing rod is connected to the water filter housing, the fixed ring is fixedly connected to the fixing rod, the movable ring is slidably connected to the fixing rod, and a water outlet is provided on the water filter housing.

5. The sludge dewatering machine according to claim 3, characterized in that: The distance between the two fixed rings is a first distance, and the first distance is gradually reduced from the front chamber to the rear chamber.

6. The sludge dewatering machine according to claim 4, characterized in that: An elastic member is provided between the movable ring and the adjacent fixed ring, and the elastic member is used to drive the movable ring to move in a direction away from the rear chamber.

7. The sludge dewatering machine according to claim 1, characterized in that: The sludge input assembly includes a plunger pump, a mud inlet valve and a mud outlet valve. A mud injection cavity is provided in the plunger pump. The mud injection cavity is connected to the mud inlet valve and the mud outlet valve respectively. The mud outlet valve is connected to the front chamber through a mud outlet rod.

8. The sludge dewatering machine according to claim 7, characterized in that: The feed cylinder is connected to the mud injection cavity through a mud inlet valve.

9. The sludge dewatering machine according to claim 7, characterized in that: The plunger pump includes a mud injection housing, a plunger rod and a second driving member, the mud injection cavity is located in the mud injection housing, the plunger rod is connected to the second driving member, the plunger rod is arranged in the mud injection housing along a first direction, and the second driving member is used to drive the plunger rod to move closer to or away from the mud outlet valve and the mud inlet valve; wherein, When the plunger rod moves away from the mud outlet valve and the mud inlet valve, the mud inlet valve opens and the mud outlet valve closes, the volume of the mud injection cavity increases, and the sludge enters the mud injection cavity under high pressure through the mud inlet valve; When the plunger moves close to the mud outlet valve and the mud inlet valve, the mud inlet valve is closed and the mud outlet valve is opened, the volume of the mud injection cavity is reduced, and the sludge enters the front chamber through the mud outlet valve.

10. The sludge dewatering machine according to claim 1, characterized in that: The sludge dewatering component also includes: A conical rod is arranged in the water filter cavity along a first direction, an extrusion cavity is formed between the conical rod and the filter cloth sleeve, the conical rod is connected to the front chamber and / or the rear chamber, and the cross section of the conical rod is gradually increased from the front chamber to the rear chamber.

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