Stacked screw machine convenient for cleaning residual sludge

Abstract

The invention provides a stacked screw machine convenient for cleaning residual sludge, which comprises a stacked screw body, a rotating shaft with a spiral blade is arranged in the stacked screw body, and the screw pitch of the spiral blade is gradually reduced from the small-diameter end of the rotating shaft to the large-diameter end of the rotating shaft; the cleaning water inlet cavity comprises a plurality of fixed rings and movable rings which are alternately arranged, the cleaning water inlet cavity communicates with a cavity in the stacked spiral body, the end, with the larger diameter, of the rotating shaft is arranged in the cleaning water inlet cavity, each fixed ring comprises a bearing part and a pressing part, an opening is formed in one side of the bearing part, and the cleaning water inlet cavity can communicate with the outside through the opening; when the pressing part and the bearing part are close to a limit position, the pressing part can block the opening; and one end with smaller screw pitch of the spiral blade is arranged in the cleaning water inlet cavity. The bearing part with the opening and the pressing part are adopted to form the fixing ring, so that the cleaning water inlet cavity can be opened in the cleaning stage, cleaning liquid can enter the machine conveniently, the cleaning difficulty of internal sludge is lowered, and the stacked screw machine is prevented from being blocked by residual sludge.

Description

Technical Field

[0001] The invention belongs to the field of sludge purification, and in particular relates to a screw stacking machine which is convenient for cleaning residual sludge. Background Art

[0002] The spiral stacker is a kind of sludge dewatering equipment, which drives the sludge to move by rotating the internal rotating shaft, squeezes out the water in the sludge, and discharges the squeezed water through the gaps created by the relative movement of the fixed ring and the moving ring. It occupies the small processing volume market with its advantages of small footprint, continuous sludge discharge, and simple operation. However, during use, the sludge at the end is compacted due to the squeezing of the sludge by the internal spiral structure, and since there are continuous fixed rings and moving rings on the outside, it is not easy for the cleaning liquid to enter the machine after each use, resulting in frequent blockage at the end of the machine, affecting the next use. If you want to clean the internal structure, you need to disassemble multiple fixed rings and moving rings in turn to clean out the blocked sludge. The disassembly and assembly process is very cumbersome, affecting the use of the equipment. Summary of the invention

[0003] In view of this, the present invention aims to provide a snail stacking machine that is convenient for cleaning residual sludge, so as to provide a snail stacking machine that is convenient for cleaning.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows: A screw stacking machine convenient for cleaning residual sludge, comprising The stacked screw body has a rotating shaft inside, and the diameter of the rotating shaft gradually increases along the axial direction. The rotating shaft is provided with a spiral blade, and the pitch of the spiral blade gradually decreases from the smaller diameter end of the rotating shaft to the larger diameter end; The cleaning water inlet chamber comprises a plurality of fixed rings and movable rings axially arranged along the rotating shaft, and the fixed rings and the movable rings are arranged alternately, the cleaning water inlet chamber is connected with the cavity inside the stacked spiral body, the end of the rotating shaft with a larger diameter is placed in the cleaning water inlet chamber, the fixed ring comprises a bearing part and a pressing part, an opening is provided on one side of the bearing part, the cleaning water inlet chamber can be connected with the outside through the opening, the pressing part can be close to or away from the bearing part, and when the pressing part and the bearing part are close to the extreme position, the pressing part can block the opening; the end of the spiral blade with a smaller pitch is placed in the cleaning water inlet chamber.

[0005] Furthermore, the bearing portion is in an arc shape, and the pressing portion and the bearing portion are combined to form a fixing ring.

[0006] Furthermore, a hinge shaft is provided on one side of the pressing part, and each pressing part is rotatably connected to the hinge shaft.

[0007] Furthermore, a gasket is provided between every two adjacent pressing parts, and the thickness of the gasket is the same as the thickness of the movable ring.

[0008] Furthermore, second connecting parts extend outward from both ends of the pressing part respectively, and the second connecting part on the same side of the pressing part is fixedly connected to a second clamping strip, and the second clamping strip can be subjected to external force toward the bearing part so that the pressing part is pressed tightly against the bearing part.

[0009] Furthermore, the second connecting portion has chamfered edges on both sides of a side facing the bearing portion.

[0010] Furthermore, an oblong hole is formed at one end of the fixing portion, and the pressing portion is rotatably connected to the intersection shaft through the oblong hole.

[0011] Furthermore, the length direction of the oblong hole is perpendicular to the length direction of the second connecting portion.

[0012] Furthermore, first connecting parts extend outward from both ends of the bearing part respectively, and the first connecting part on the same side of the bearing part is fixedly connected to a first clamping strip, and corresponding through holes are opened on the first clamping strip and the second clamping strip, and the clamping member can pass through the through holes to bring the first clamping strip and the second clamping strip closer to each other.

[0013] Furthermore, the clamping member includes a bolt and a nut, the bolt passes through the through hole, the nut is threadedly connected to the bolt, and the head of the bolt and the nut can be tightly pressed on the edge of the through hole.

[0014] Furthermore, the stacked screw body includes at least two connecting plates and multiple screws, and the ends of the screws pass through the connecting plate closest to the cleaning water inlet chamber, and the connecting plate extends a support sleeve outward from the surface of one side of the cleaning water inlet chamber, and the length of the support sleeve is greater than or equal to the length of the screw passing through the connecting plate.

[0015] Compared with the prior art, the screw stacking machine for facilitating the cleaning of residual sludge described in the present invention has the following advantages: The present invention adopts a bearing part with an opening and a pressing part to form a fixing ring, so that the cleaning water inlet cavity can be opened in the cleaning stage to facilitate the cleaning liquid to enter the inside of the machine, thereby reducing the difficulty of cleaning the internal sludge and preventing the residual sludge from clogging the screw stacking machine; The second pressing strip allows the plurality of pressing parts to be combined into a whole, so that the plurality of pressing parts can be opened simultaneously during operation, thereby improving the operation efficiency; A gasket is used to support the space between the two pressing parts to prevent the spacing between the pressing parts from changing after the pressing parts are opened during the cleaning process, which causes trouble to the closing of the pressing parts; The oblong hole is used to provide an escape space for opening the pressing portion, thereby preventing the second connecting portion from interfering with the bearing portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the main part of the screw stacking machine; Figure 2 for Figure 1 Internal cross-sectional view; Figure 3 This is a schematic diagram of the cleaning water inlet chamber structure; Figure 4 It is a schematic diagram of the fixed ring structure; Figure 5 This is a schematic diagram of the structure after the fixing ring is opened.

[0017] Description of reference numerals: 1-stacked screw body; 11-rotating shaft; 111-variable section; 112-dehydration section; 12-spiral blade; 13-fixed ring; 14-moving ring; 2-cleaning water inlet chamber; 21-connecting plate; 211-support sleeve; 22-screw; 23-fixing ring; 231-bearing part; 2311-first connecting part; 2312-opening; 25-first clamping strip; 232-pressing part; 2321-second connecting part; 26-second clamping strip; 2322-long round hole; 2323-fitting surface; 24-movable ring; 27-hinge shaft; 28-gasket. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0022] Combination Figure 1 , Figure 2 and Figure 3 As shown, the screw stacking machine for facilitating cleaning of residual sludge described in the present invention comprises a screw stacking body 1 and a cleaning water inlet chamber 2 which are interconnected, the screw stacking body 1 comprises at least two connecting plates 21 and a plurality of screws 22, and a plurality of fixed rings 13 and a movable ring 14 are alternately provided between two adjacent connecting plates 21, the screw 22 passes through the edge of the fixed ring 13, and the movable ring 14 is placed inside the space surrounded by the plurality of screws 22, both ends of each screw 22 respectively pass through the connecting plates 21, and are screwed to the screw 22 through nuts, so that the connecting plates 21 clamp the fixed ring 13 and the movable ring 14 to prevent the solids in the sludge from escaping from the screw stacking body 1. A rotating shaft 11 is also provided in the spiral body 1, and a spiral blade 12 is provided on the rotating shaft 11. The diameter of one end of the rotating shaft 11 is smaller than the diameter of the other end, and the spiral blade 12 gradually shrinks from the smaller diameter end of the rotating shaft 11 to the larger diameter end, so that the space surrounded by each circle of the spiral blade 12 and the spiral body 1 gradually shrinks, thereby squeezing the sludge and squeezing out the water contained in the sludge. At the same time, the moving ring 14 moves due to the squeezing generated by the movement of the sludge and the spiral blade 12 in the spiral body 1, so that a gap is generated between the moving ring 14 and the fixed ring 13, and the squeezed water is discharged from the gap.

[0023] The end of the rotating shaft 11 with a larger diameter is placed in the cleaning water inlet chamber 2. In this embodiment, the cleaning water inlet chamber 2 includes a plurality of fixed rings 23 and movable rings 24 arranged along the axial direction of the rotating shaft 11, and the fixed rings 23 and the movable rings 24 are arranged alternately. The cleaning water inlet chamber 2 is connected to the cavity inside the spiral body 1, and the end of the rotating shaft 11 with a larger diameter is placed in the cleaning water inlet chamber 2. Figure 4 and Figure 5As shown, the fixing ring 23 includes a bearing portion 231 and a pressing portion 232. An opening 2312 is provided on one side of the bearing portion 231. The cleaning water inlet chamber 2 can be connected to the outside through the opening 2312. The pressing portion 232 can be close to or away from the bearing portion 231. In this embodiment, the pressing portion 232 and the bearing portion 231 are combined to form the fixing ring 23, and the bearing portion 231 is in a major arc shape, so that an opening 2312 is formed on the upper part of the bearing portion 231. The pressing portion 232 is in a minor arc shape. Fitting surfaces 2323 are respectively provided at both ends of the pressing portion 232 and the bearing portion 231, and when the pressing portion 232 and the bearing portion 231 are close to the extreme position, the fitting surfaces 2323 are tightly attached to each other, and the pressing portion 232 blocks the opening 2312. In this embodiment, in order to simplify the operation process, the second connecting parts 2321 are respectively extended outward from both ends of the pressing part 232, and the fitting surface 2323 is placed at the bottom of the second connecting part 2321. Second clamping strips 26 are respectively provided on both sides of the pressing part 232, and the end of the second connecting part 2321 is fixedly connected to the second clamping strip 26. Specifically, in this embodiment, a waist hole corresponding to the pressing part 232 is opened on the second clamping strip 26, and the length direction of the waist hole is parallel to the length direction of the second clamping strip 26. A screw hole is opened on the end face of the second connecting part 2321, and the end of the second connecting part 2321 is fixedly connected to the second clamping strip 26 by bolts, so that each pressing part 232 can be opened at one time, saving cleaning operation time. Optionally, the pressing part 232 can be lifted up manually. In the present embodiment, in order to save manpower, a hinge shaft 27 is provided on one side of the cleaning water inlet chamber 2, and each pressing part 232 is rotatably connected to the hinge shaft 27 respectively. More specifically, an oblong hole 2322 is provided on the pressing part 232, and the hinge shaft 27 passes through the oblong hole 2322 and is rotatably connected to the pressing part 232, and when the pressing part 232 is covered on the bearing part 231, the hinge shaft 27 is placed on the top of the oblong hole 2322. Optionally, the length direction of the oblong hole 2322 can be parallel to the length direction of the second connecting part 2321. During operation, first Pull the pressing part 232 to move the end of the second connecting part 2321 to a position close to the hinge part, and then lift the pressing part 232 upward to prevent the second connecting part 2321 from interfering with the receiving part. In this embodiment, the length direction of the oblong hole 2322 is perpendicular to the length direction of the second connecting part 2321. During operation, the pressing part 232 can be moved upward first to separate the pressing part 232 from the bearing part 231, and then the pressing part 232 can be rotated. This can also prevent the second connecting part 2321 from interfering with the receiving part 231. At the same time, this design prevents friction between the fitting surfaces 2323, which causes wear of parts.

[0024] The edges of the fitting surface 2323 of the second connecting portion 2321 facing the bearing portion 231 are chamfered on both sides. When the pressing portion 232 rotates downward, the chamfered portion first contacts the movable ring 24 to facilitate the movable ring 24 to enter the gap between the two covering pressing portions, thereby preventing the movable ring 24 from contacting the fitting surface 2323 and causing the movable ring 24 to be damaged. A gasket 28 is provided between two adjacent pressing portions 232. The thickness of the gasket 28 is the same as that of the movable ring 24. The gasket 28 is sleeved on the hinge shaft 27, thereby improving the rigidity of the device and avoiding changes in the gap between two adjacent pressing portions 232, which may cause the movable ring 24 to be damaged.

[0025] In order to facilitate processing and assembly, the thickness of the fixed ring 23 is greater than that of the movable ring 24. The rotating shaft 11 includes a reducing section 111 and a dehydration section 112. The reducing section 111 is conical. The diameter of the dehydration section 112 is the same as the maximum diameter of the reducing section 111. The dehydration section 112 is placed in the cleaning water inlet chamber 2, and the axial length in the cleaning water inlet chamber 2 is greater than the length of the dehydration section 112, so that the end with a larger diameter of the reducing section 111 is placed in the cleaning water inlet chamber 2. The pitch of the spiral blades 12 of the dehydration section 112 is the same. When the sludge is sent to the cleaning water inlet chamber 2, the dehydration section 112 is placed in the cleaning water inlet chamber 2. After entering the water chamber 2, with the squeezing of the spiral blades 12 and the change in the diameter of the rotating shaft 11, the water in the sludge is squeezed out. When it is squeezed to the preset limit pressure, it reaches the position of the dehydration section 112. At this time, the pressure is maintained so that the squeezed water can be more fully discharged from the gaps generated during the movement of the movable ring 24 of the cleaning water inlet chamber 2, to prevent the squeezed water from moving with the sludge to the outside of the equipment due to failure to be discharged in time, and recombining with the sludge, resulting in an increase in the water content of the treated sludge. At the same time, it is prevented that the drainage effect is affected by the large thickness of the fixed ring 23 of the cleaning water inlet chamber 2. During operation, since the sludge at the end of the rotating shaft 11 is squeezed more tightly, the part that needs to be cleaned is also the end with a larger diameter in the variable diameter section 111 and the dehydration section 112. Placing it in the cleaning water inlet chamber 2 can facilitate cleaning.

[0026] The first connecting parts 2311 are extended outward from both ends of the bearing part 231, and the first connecting part 2311 on the same side of the bearing part 231 is fixedly connected to a first clamping strip 25. The first clamping strip 25 and the second clamping strip 26 are provided with corresponding through holes, and the through holes are waist holes, and the length direction of the waist holes is parallel to the length direction of the first clamping strip 25. The clamping member can pass through the through hole to bring the first clamping strip 25 and the second clamping strip 26 closer to each other. Optionally, the clamping member can be a spring lock. In this embodiment, the clamping member is a bolt and a nut. The first clamping strip 25 and the second clamping strip 26 extend outwards to form a locking table, respectively, and the locking table is provided with a through hole. The bolt passes through the through hole and is tightened by the nut. The head of the bolt and the nut can be pressed tightly against the edge of the through hole. The two clamping strips are close to each other, and the clamping force causes the pressing part 232 to be pressed tightly against the bearing part 231.

[0027] The stacked screw body 1 includes at least two connecting plates 21 and multiple screws 22, and the ends of the screws 22 pass through the connecting plate 21 closest to the cleaning water inlet chamber 2, and the connecting plate 21 extends a support sleeve 211 outwardly from the surface of one side of the cleaning water inlet chamber 2, and the length of the support sleeve 211 is greater than or equal to the length of the screw 22 passing through the connecting plate 21, thereby avoiding interference between the pressing portion 232 and the end of the screw 22 during the opening process.

[0028] In this embodiment, the cleaning water inlet chamber 2 includes a connecting plate 21 and a screw 22 that are the same as the stacking screw body 1, and the connecting plate 21 is two pieces, and the two connecting plates 21 are connected by multiple screws 22, and the fixed ring 23 and the movable ring 24 are placed between the two connecting plates 21 and tightened by nuts. A discharge hole is provided on the connecting plate 21 of the cleaning water inlet chamber 2 away from one end of the stacking screw body 1, and the sludge is discharged from the discharge hole after squeezing, and a baffle is provided at the discharge hole, and the sludge is broken and discharged through the gap between the baffle and the discharge hole. Those skilled in the art should know that how to install the baffle on the connecting plate 21 of the cleaning water inlet chamber 2, how to drive the rotating shaft 11 to rotate by a motor, how to support the stacking screw body 1, and how to make the sludge flocculate and enter the stacking screw body 1 are the same as the prior art, and they are not the technical problems to be solved by this application, so they are not repeated here; the two ends of the hinge shaft 27 are fixedly connected to the connecting plate 21, and the edge of the bearing portion 231 of the fixed ring 23 is connected to the screw 22 through a through hole. The movable ring 24 is placed between multiple screws 22 in the cleaning water inlet chamber 2, and in order to better limit the movement of the movable ring 24, in this embodiment, after the pressing part 232 is pressed, a screw 22 can be arranged above the pressing part 232, so that the movable range of the movable ring 24 is the same as the movable range of the movable ring 14 of the stacked screw body 1, and the screw 22 used to fix the bearing part 231 can be rearranged so that the movable range of the movable ring 24 is within a preset range.

[0029] The snail stacking machine that is convenient for cleaning residual sludge described in the present invention can be assembled and cleaned by the water inlet chamber 2 and the snail stacking body 1 respectively during the installation process, and then the screw 22 that passes through the connecting plate 21 of the cleaning water inlet chamber 2 is passed through the connecting plate 21 of the snail stacking body 1 and screwed together by a nut so that the connecting plate 21 is directly against the support sleeve 211, or the fixing ring 23 closest to the snail stacking body 1 can be directly against the support sleeve 211 to complete the assembly; after the sludge is squeezed and dehydrated during the working process, the pressing part 232 can be opened and flushed and cleaned by a water pipe, a scraper or a related spray device to avoid the cleaning effect being affected by the cleaning liquid being unable to enter the snail stacking body 1 due to the sludge being squeezed too tightly, resulting in sludge residual blockage.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw stacking machine that is convenient for cleaning residual sludge, characterized in that: include The stacked screw body has a rotating shaft inside, and the diameter of the rotating shaft gradually increases along the axial direction. The rotating shaft is provided with a spiral blade, and the pitch of the spiral blade gradually decreases from the smaller diameter end of the rotating shaft to the larger diameter end; The cleaning water inlet chamber comprises a plurality of fixed rings and movable rings axially arranged along the rotating shaft, and the fixed rings and the movable rings are arranged alternately, the cleaning water inlet chamber is connected with the cavity inside the stacked spiral body, the end of the rotating shaft with a larger diameter is placed in the cleaning water inlet chamber, the fixed ring comprises a bearing part and a pressing part, an opening is provided on one side of the bearing part, the cleaning water inlet chamber can be connected with the outside through the opening, the pressing part can be close to or away from the bearing part, and when the pressing part and the bearing part are close to the extreme position, the pressing part can block the opening; the end of the spiral blade with a smaller pitch is placed in the cleaning water inlet chamber.

2. A screw stacking machine for facilitating the cleaning of residual sludge according to claim 1, characterized in that: The bearing portion is in an arc shape, and the pressing portion and the bearing portion are combined to form a fixing ring.

3. A screw stacking machine for facilitating cleaning of residual sludge according to claim 1, characterized in that: A hinge shaft is provided on one side of the pressing part, and each pressing part is rotatably connected to the hinge shaft.

4. A screw stacking machine for cleaning residual sludge according to claim 1, characterized in that: A gasket is arranged between every two adjacent pressing parts, and the thickness of the gasket is the same as the thickness of the movable ring.

5. The screw stacking machine for facilitating the cleaning of residual sludge according to claim 1, characterized in that: Second connecting parts extend outward from both ends of the pressing part respectively, and the second connecting part on the same side of the pressing part is fixedly connected to a second clamping strip, and the second clamping strip can be subjected to external force toward the bearing part so that the pressing part is tightly pressed against the bearing part.

6. A screw stacking machine for facilitating the cleaning of residual sludge according to claim 5, characterized in that: The second connection portion has chamfered edges on both sides of a side facing the bearing portion.

7. A screw stacking machine for facilitating the cleaning of residual sludge according to claim 5, characterized in that: An oblong hole is formed at one end of the fixing portion, and the pressing portion is rotatably connected to the intersection shaft through the oblong hole.

8. A screw stacking machine for facilitating the cleaning of residual sludge according to claim 7, characterized in that: The length direction of the oblong hole is perpendicular to the length direction of the second connecting portion.

9. The screw stacking machine for facilitating the cleaning of residual sludge according to claim 5, characterized in that: The two ends of the bearing part respectively extend outward with first connecting parts, and the first connecting part on the same side of the bearing part is fixedly connected to a first clamping strip. The first clamping strip and the second clamping strip are provided with corresponding through holes, and the clamping member can pass through the through holes to bring the first clamping strip and the second clamping strip closer to each other.

10. A screw stacking machine for cleaning residual sludge according to claim 9, characterized in that: The pressing piece comprises a bolt and a nut. The bolt passes through the through hole. The nut is threadedly connected with the bolt, and the head of the bolt and the nut can be tightly pressed on the edge of the through hole.

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