Permanent magnet type screw press

Abstract

The utility model relates to the technical field of water treatment equipment, in particular to a permanent magnet type screw press which comprises a press pipe, a feed hopper penetrating through the top of the press pipe and a screw shaft rotationally connected into the press pipe. The bottom of the squeezing pipe is communicated with a drainage pipe; the head end of the squeezing pipe is connected with a permanent magnet type adjustable-speed motor connected with the control end of the PLC through a machine base, and the output end of the permanent magnet type adjustable-speed motor is connected with one end of the spiral shaft. The two ends of the outer portion of the squeezing pipe are supported on the supporting feet. And the tail end of the squeezing pipe is upwards and obliquely connected with a slag discharge pipe in a penetrating manner. A PLC is adopted to control the squeezing rate, the adjustable squeezing rate is matched with the inclined slag discharging pipe, secondary squeezing and dewatering of part of materials are achieved, and the dewatering efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to a permanent magnet screw press. Background Art

[0002] The screw press is a supporting equipment for the trash screen. It is a kind of equipment that uses physical extrusion to dehydrate. It is composed of a feed hopper, a pressing screw, a spiral pipe, a slag discharge pipe and a driving device. The screen slag or the filtered filter slag taken by the screen enters the spiral pipe from the feed hopper and is squeezed and dehydrated under the action of the pressing screw. The water squeezed out of the material passes through the filter screen and collects in the water receiving basin and is discharged from the drain pipe. The material is compressed and discharged through the slag discharge pipe, which can greatly reduce the weight and volume of debris such as screen slag. The screw press is composed of a drainage area, a feeding area, a spiral conveying area and a discharging area. The screen slag enters the material area, is compacted in the compaction area by the screw press, and then is discharged. The waste liquid flows into the water collection pipe from the grid bars.

[0003] The pressing rate of the current screw press is not adjustable, and the dehydration process is completed at one time, and the dehydration efficiency is not high. Utility Model Content

[0004] The purpose of the utility model is to address the defects and shortcomings of the prior art and provide a permanent magnet screw press, which adopts PLC to control the pressing rate. The adjustable pressing rate is combined with an inclined slag discharge pipe to achieve secondary pressing and dehydration of part of the material, effectively improving the dehydration efficiency.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it comprises a squeezing tube, a feed hopper penetrating through the top of the squeezing tube and a spiral shaft rotatably connected to the inside of the squeezing tube; a drainage pipe is connected through the bottom of the squeezing tube; the head end of the squeezing tube is connected to a permanent magnet adjustable speed motor connected to a PLC control end through a machine base, and the output end of the permanent magnet adjustable speed motor is connected to one end of the spiral shaft; both ends of the outside of the squeezing tube are supported on supporting feet; and a slag discharge pipe is connected through the tail end of the squeezing tube in an upwardly inclined manner.

[0006] Preferably, the PLC control end is arranged in an electric control box located on one side of the squeezing tube.

[0007] Preferably, the pitch of the spiral shaft is arranged from large to small from the position of the feed hopper to the position of the slag discharge pipe.

[0008] Preferably, a nylon cushion layer is provided at the connection position between the support leg and the pressing tube.

[0009] Preferably, the slag discharge pipe is inclined upward at 45°.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a permanent magnet screw press, which adopts PLC to control the pressing rate. The adjustable pressing rate is combined with an inclined slag discharge pipe to achieve secondary pressing and dehydration of part of the material, effectively improving the dehydration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a rear end view of the utility model.

[0013] Description of reference numerals:

[0014] Permanent magnet adjustable speed motor 1, machine base 2, feed hopper 3, pressing tube 4, screw shaft 5, support foot 6, slag discharge tube 7, nylon cushion layer 8, drainage pipe 9. DETAILED DESCRIPTION

[0015] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the utility model.

[0016] like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical scheme: it includes a squeeze tube 4, a feed hopper 3 passing through the top of the squeeze tube 4, and a spiral shaft 5 rotatably connected to the inside of the squeeze tube 4; the PLC control end is arranged in an electric control box located on one side of the squeeze tube 4; a drain pipe 9 is connected to the bottom of the squeeze tube 4; the head end of the squeeze tube 4 is connected to a permanent magnet adjustable speed motor 1 connected to the PLC control end by a machine base 2, and the output end of the permanent magnet adjustable speed motor 1 is connected to one end of the spiral shaft 5; the pitch of the spiral shaft 5 is arranged from large to small from the position of the feed hopper 3 to the position of the slag discharge pipe 7; both ends of the outside of the squeeze tube 4 are supported on the support foot 6, and a nylon cushion layer 8 is arranged at the connection position between the support foot 6 and the squeeze tube 4; the tail end of the squeeze tube 4 is connected to a slag discharge pipe 7 at an angle of 45° upward.

[0017] When the utility model is in use, it can be linked with the grille dirt remover and share a PLC control end. The permanent magnet adjustable speed motor 1 is controlled by the PLC control end, and the material is pushed to the tail end of the screw shaft 5 in the squeezing tube 4. During the pushing process, the material is subjected to the pressure between the screw shaft 5 and the wall plate of the squeezing tube 4, so that the liquid part is squeezed out. The command issued by the PLC control end is used to adjust the speed of the permanent magnet adjustable speed motor 1. When the secondary extrusion is realized, the speed is increased, and the undischarged material residue is subjected to secondary extrusion, thereby improving the dehydration rate.

[0018] After adopting the above structure, the beneficial effects of this specific implementation are as follows:

[0019] 1. The permanent magnet adjustable speed motor is used to adjust the speed under PLC control, so as to achieve the effect of secondary pressing and improve the pressing efficiency;

[0020] 2. The inclined slag discharge pipe is used to reduce the discharge speed of the slag of the first pressing material, and combined with the speed regulation of the spiral shaft, the secondary pressing is achieved;

[0021] 3. Use pitch from large to small to improve pressing efficiency.

[0022] For those skilled in the art, they can modify the technical solutions recorded in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A permanent magnet screw press, characterized in that: It comprises a squeezing tube (4), a feed hopper (3) penetrating the top of the squeezing tube (4), and a spiral shaft (5) rotatably connected to the inside of the squeezing tube (4); a drainage pipe (9) is connected through the bottom of the squeezing tube (4); the head end of the squeezing tube (4) is connected to a permanent magnet adjustable speed motor (1) connected to a PLC control end via a machine base (2), and the output end of the permanent magnet adjustable speed motor (1) is connected to one end of the spiral shaft (5); both ends of the outside of the squeezing tube (4) are supported on support feet (6); and a slag discharge pipe (7) is connected through the tail end of the squeezing tube (4) in an upwardly inclined manner.

2. A permanent magnet screw press according to claim 1, characterized in that: The PLC control end is arranged in an electric control box located on one side of the squeezing tube (4).

3. A permanent magnet screw press according to claim 1, characterized in that: The pitch of the spiral shaft (5) is arranged from large to small from the position of the feed hopper (3) to the position of the slag discharge pipe (7).

4. A permanent magnet screw press according to claim 1, characterized in that: A nylon cushion layer (8) is provided at the connection position between the support leg (6) and the squeezing tube (4).

5. A permanent magnet screw press according to claim 1, characterized in that: The slag discharge pipe (7) is arranged to be inclined upward at 45°.

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