Sludge banded extruder

Abstract

The utility model discloses a sludge banded extruder which comprises a mounting bracket and a banded extruder arranged on the mounting bracket, the banded extruder comprises a charging barrel and a driving mechanism arranged on the charging barrel, the driving mechanism comprises a motor, a speed reducer, a screw rod and rotating blades, an output shaft of the motor is connected with the speed reducer, the speed reducer is connected with one end of the screw rod, and the other end of the screw rod is connected with the rotating blades. The rotating blade is arranged on the screw rod, and a plurality of discharging holes which are arranged at equal intervals are formed in the lower side of the charging barrel. According to the sludge strip extruding machine, sludge in the charging barrel is driven to rotate under the action of the driving mechanism, in the rotating process, the sludge can be extruded out from the discharging hole in the bottom of the charging barrel to form strip-shaped sludge, when large-particle impurities exist, the sludge can rotate along with the sludge in the charging barrel all the time, the rotating blades cannot be damaged, and when the impurities need to be taken out, the sludge can be extruded out from the discharging hole to form strip-shaped sludge. And the mud in the charging barrel only needs to be taken out, so that the maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge drying, in particular to a sludge extruder. Background Art

[0002] After the front-end water treatment process is completed and mechanical dehydration is carried out, the sludge with a moisture content of about 80% is in the form of cakes or lumps, which cannot be evenly exposed to the wind, making it difficult to dry. Therefore, a sludge cutter is produced. The sludge cutter plays an important role in the sludge treatment process. Its necessity is mainly reflected in the following aspects:

[0003] 1. Improved processing efficiency: The sludge cutter can cut the sludge into small strips, which not only facilitates subsequent processing steps such as drying, incineration or landfill, but also greatly improves the efficiency of the entire sludge treatment process.

[0004] 2. Volume reduction: Through the strip cutting process, the sludge strip cutter can cut the sludge into small particles, significantly reducing its volume, thereby saving space for storage and transportation.

[0005] 3. Convenient for subsequent processing: The cut sludge strips are easier to spread and dry evenly, which helps to ensure energy saving, environmental protection and efficient utilization.

[0006] In summary, the sludge cutter plays a key role in sludge treatment. It not only improves the treatment efficiency and reduces the volume, but also facilitates the subsequent treatment steps. It is an indispensable equipment in the fields of cement, sewage, and wastewater.

[0007] However, some problems were discovered during actual use:

[0008] 1. The resistance of the strip cutting machine is large, and the knife roller printing is prone to form gaps. The large resistance will damage the reducer and burn the motor;

[0009] 2. The distance between the two knife rollers is expanded, which causes the bearing of the strip cutter to burst;

[0010] 3. After the damaged notch of the guide roller of the slitting machine is repaired, the amount of dust generated by the slitting mud will increase greatly, causing dust all over the equipment, serious blockage of the filter bag and heat exchanger, and large wind resistance of the system, which will lead to a decrease in the overall circulation air volume and low efficiency;

[0011] 4. Repair work is difficult after hard debris enters the feed bin. It is necessary to take out all the mud in the original feed bin, find out the hard debris, and then replace the damaged parts. There are many complaints from on-site staff, the work intensity is high, the equipment maintenance operation is difficult and time-consuming, and the failure rate is high, resulting in low overall equipment utilization rate.

[0012] Therefore, a new type of sludge extruder is urgently needed to solve the above problems. Utility Model Content

[0013] The utility model aims to provide a sludge strip extruder to solve the technical problems that the guide rollers of the existing strip cutting machines are easily damaged, the sludge formed by strip cutting is dusty and blocks the heat exchanger, resulting in a decrease in the overall circulating air volume and efficiency, and the strip cutting machine is difficult to maintain.

[0014] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sludge extruder, comprising a mounting bracket and an extruder arranged on the mounting bracket, wherein the extruder comprises a barrel and a driving mechanism arranged on the barrel, the driving mechanism comprises a motor, a reducer, a screw and a rotating blade, the output shaft of the motor is connected to the reducer, the reducer is connected to one end of the screw, the rotating blade is arranged on the screw, and a plurality of equally spaced discharge holes are provided on the lower side of the barrel.

[0015] Preferably, the rotating blades include left-rotating blades and right-rotating blades symmetrically arranged at both ends of the screw, and the blades of the left-rotating blades and the right-rotating blades are arranged in opposite directions.

[0016] Preferably, the barrel is an inverted "T"-shaped structure, including a transverse barrel and a longitudinal barrel, wherein the transverse barrel is provided with one, and the longitudinal barrels are provided with multiple, and the multiple longitudinal barrels are connected to the transverse barrel.

[0017] Preferably, the screw and the rotating blades are arranged in a transverse barrel.

[0018] Preferably, a platform for placing the motor and the reducer is provided on the outside of the mounting bracket.

[0019] Preferably, the discharge hole corresponds to the mesh belt of the sludge dryer.

[0020] Preferably, a fixing seat is provided on the inner side of the mounting bracket, mounting seats are provided at both ends of the barrel, and the barrel is mounted on the fixing seat through the mounting seats.

[0021] Preferably, a bearing is provided inside the mounting seat at a position in contact with the screw rod.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model discloses a sludge strip extruder, comprising a mounting bracket and an extruder, the extruder comprising a barrel and a driving mechanism, the driving mechanism comprising a motor, a reducer, a screw and rotating blades, the screw and rotating blades of the driving mechanism are arranged inside the barrel, the motor and the reducer are arranged outside the barrel, and are used to drive the screw and rotating blades therein to rotate, thereby squeezing the sludge in the barrel from a discharge hole at the bottom, and the extruded strip sludge is evenly spread on a mesh belt of a drying machine and enters the drying machine for drying and drying.

[0024] The driving mechanism drives the sludge in the barrel to rotate. During the rotation, the sludge will be squeezed out from the discharge hole at the bottom of the barrel to form strips of sludge. When there are large particles of debris, they will continue to rotate with the sludge in the barrel and will not cause damage to the rotating blades. When the debris needs to be taken out, only the mud in the barrel needs to be taken out, which is convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0026] Figure 1 This is a schematic diagram of the main structure of a sludge extruder of the utility model;

[0027] Figure 2 This is a schematic diagram of the external structure of a sludge extruder of the utility model;

[0028] Figure 3 It is a side structural schematic diagram of a sludge extruder of the utility model.

[0029] Description of reference numerals:

[0030] 1. Mounting bracket; 11. Platform; 12. Fixed seat; 2. Extruder; 21. Barrel; 210. Discharge hole; 211. Horizontal barrel; 212. Longitudinal barrel; 213. Mounting seat; 2131. Bearing; 22. Driving mechanism; 221. Motor; 222. Reducer; 223. Screw; 224. Rotating blade; 2241. Left-rotating blade; 2242. Right-rotating blade; 3. Mesh belt. DETAILED DESCRIPTION

[0031] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0032] See also Figure 1-3 The utility model provides a technical solution: a sludge extruder, including a mounting bracket 1 and an extruder 2 arranged on the mounting bracket, the extruder 2 includes a barrel 21 and a driving mechanism 22 arranged on the barrel, the driving mechanism 22 includes a motor 221, a reducer 222, a screw 223 and a rotating blade 224, the output shaft of the motor 221 is connected to the reducer 222, the reducer 222 is connected to one end of the screw 223, the rotating blade 224 is arranged on the screw 223, and a plurality of equally spaced discharge holes 211 are provided on the lower side of the barrel 21.

[0033] The utility model discloses a sludge extruder, comprising a mounting bracket 1 and an extruder 2, wherein the extruder 2 comprises a barrel 21 and a driving mechanism 22, wherein the driving mechanism 22 comprises a motor 221, a reducer 222, a screw 223 and a rotating blade 224, wherein the screw 223 and the rotating blade 224 of the driving mechanism 22 are arranged inside the barrel, and the motor 221 and the reducer 222 are arranged outside the barrel, and are used to drive the screw 223 and the rotating blade 224 therein to rotate, thereby extruding the sludge in the barrel from a discharge hole 210 at the bottom, and the extruded strip-shaped sludge is evenly spread on the mesh belt of the drying machine and enters the drying machine for drying and drying. The driving mechanism 22 drives the sludge in the barrel 21 to rotate. During the rotation, the sludge will be squeezed out from the discharge hole at the bottom of the barrel to form strips of sludge. When there are large particles of debris, they will continue to rotate with the sludge in the barrel and will not cause damage to the rotating blades 224. When the debris needs to be taken out, only the mud in the barrel 21 needs to be taken out, which is convenient for maintenance.

[0034] In a preferred embodiment, referring to Figure 1 The rotary blades 224 of the sludge extruder include a left-rotating blade 2241 and a right-rotating blade 2242 symmetrically arranged at both ends of the screw 223, and the blades of the left-rotating blade 2241 and the right-rotating blade 2242 are arranged in opposite directions. By arranging the left-rotating blade 2241 and the right-rotating blade 2242 at both ends of the screw 223, when in use, they rotate in opposite directions synchronously, so that the sludge entering the barrel can be quickly dispersed to both ends, and the rotary blades contact the inner wall of the barrel and also have the function of scraping and cutting the inner wall, so that the sheared sludge strips can be of different specifications, and at the same time, the sludge strips are automatically dropped.

[0035] In a preferred embodiment, referring to Figure 1 and 2 The barrel 21 of the sludge extruder is an inverted "T"-shaped structure, including a transverse barrel 211 and a longitudinal barrel 212. The transverse barrel 211 is provided with one, and the longitudinal barrel 212 is provided with multiple, and the multiple longitudinal barrels 212 are connected to the transverse barrel 211. The barrel 21 is an inverted "T"-shaped structure, and its feed port is arranged below the sludge conveying device. When feeding, the sludge enters the transverse barrel 211 through the multiple longitudinal barrels 212.

[0036] In a preferred embodiment, referring to Figure 1 The screw 223 and the rotating blade 224 of the sludge extruder are arranged in the transverse barrel 211. The screw 223 is arranged transversely inside the barrel 211, and the rotating blade 224 is arranged on the screw 223. The motor drives the screw 223 to rotate, and drives the rotating blade 224 to rotate, extruding the sludge to form sludge strips.

[0037] In a preferred embodiment, referring to Figure 1 and Figure 2 The outer side of the mounting bracket 1 of the sludge extruder is provided with a platform 11 for placing the motor 221 and the reducer 222. The platform plays a role in supporting the motor 221 and the reducer 222.

[0038] In a preferred embodiment, referring to Figure 1 and Figure 2 The discharge hole 210 of the sludge extruder corresponds to the mesh belt 3 of the sludge dryer. By setting the discharge hole 210 at the position corresponding to the mesh belt 3 of the sludge dryer, it is ensured that the extruded sludge strips can be directly transported by the mesh belt into the dryer for drying, thereby realizing automatic operation.

[0039] In a preferred embodiment, referring to Figure 1 and Figure 2 The mounting bracket 1 of the sludge extruder is provided with a fixing seat 12 on the inner side, and mounting seats 213 are provided at both ends of the barrel 21, and the barrel 21 is mounted on the fixing seat 12 through the mounting seats 213. A bearing 2131 is provided inside the mounting seat 213 at a position in contact with the screw 223. The fixing seat 12 is used to mount the barrel 21, and the barrel 21 is fixed on the fixing seat 12 through the mounting seats 213 at both ends, which is convenient for installation and disassembly.

[0040] When the sludge extruder is used, the screw conveying pump of the sludge conveyor conveys the sludge with a moisture content of about 80% to the extruder of the drying equipment. The sludge entering the extruder enters the extruder groove under the action of back pressure. At the same time, the motor 221 drives the reducer 222 to drive the screw 223 and the rotating blade 224 to rotate. The sludge in the groove moves downward and to the left and right sides along the left and right spiral under the pressure of the screw 223; under the action of a certain extrusion force, the extruded sludge is extruded downward along the discharge hole 211 at the bottom of the barrel 21; at the same time, the rotating blade 224 rotating left and right cuts the tangent of the inner wall of the barrel to scrape off the extruded strip sludge; the scraped strip sludge is evenly spread on the mesh belt of the drying machine, and the sludge on the mesh belt and the tray is dried and dried by the drying system, so as to ensure that the extruder can adapt to sludge with a wider performance, output, and impurity content, maintain efficient and constant operation, and reduce the labor intensity of on-site work.

[0041] The sludge extruder also has the following features:

[0042] 1. The overall structure is simple, which can reduce the workload of on-site operators and facilitate maintenance;

[0043] 2. High and stable operating efficiency and low failure rate;

[0044] 3. The extruded strips are in good shape and the moisture content of the mud is stable for a long time, meeting the needs of customers;

[0045] 4. The equipment can run fully automatically and with one button operation to reduce human operating errors;

[0046] 5. The extruded strips are well formed, without the trouble of dust particles, and will not cause environmental pollution.

[0047] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A sludge extruder, comprising a mounting bracket and an extruder arranged on the mounting bracket, characterized in that: The extruder includes a barrel and a driving mechanism arranged on the barrel, the driving mechanism includes a motor, a reducer, a screw and a rotating blade, the output shaft of the motor is connected to the reducer, the reducer is connected to one end of the screw, the rotating blade is arranged on the screw, and a plurality of equally spaced discharge holes are provided on the lower side of the barrel.

2. The sludge extruder according to claim 1, characterized in that: The rotating blades include left-rotating blades and right-rotating blades symmetrically arranged at two ends of the screw, and the left-rotating blades and the right-rotating blades are arranged in opposite directions.

3. The sludge extruder according to claim 1, characterized in that: The material barrel is an inverted "T"-shaped structure, including a transverse material barrel and a longitudinal material barrel. The transverse material barrel is provided with one, and the longitudinal material barrels are provided with multiple, and the multiple longitudinal material barrels are connected to the transverse material barrel.

4. The sludge extruder according to claim 1, characterized in that: The screw and the rotating blades are arranged in the transverse barrel.

5. The sludge extruder according to claim 1, characterized in that: A platform for placing the motor and the reducer is arranged outside the mounting bracket.

6. The sludge extruder according to claim 1, characterized in that: The discharge hole corresponds to the mesh belt of the sludge dryer.

7. The sludge extruder according to claim 1, characterized in that: A fixing seat is arranged on the inner side of the mounting bracket, mounting seats are arranged at both ends of the barrel, and the barrel is mounted on the fixing seat through the mounting seats.

8. The sludge extruder according to claim 7, characterized in that: A bearing is arranged inside the mounting seat at a position in contact with the screw rod.

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