Spiral bar screen machine

Abstract

The utility model discloses a spiral bar screen machine which comprises a cylindrical rotary drum bar screen, the front end of the rotary drum bar screen is provided with a water inlet, the rear end of the rotary drum bar screen is connected with a conveying shell, a spiral conveying shaft is coaxially arranged in the conveying shell, the front end of the spiral conveying shaft extends to the front end of the rotary drum bar screen and is fixedly connected with the rotary drum bar screen, and the front end of the spiral conveying shaft is fixedly connected with the rotary drum bar screen. A collecting barrel is arranged between the rotary drum grating and the spiral conveying shaft, a slag inlet is formed in the upper end of the collecting barrel, and spiral conveying blades and spiral cutting blades opposite to the spiral conveying blades are arranged in the circumferential direction of the spiral conveying shaft. The rear end of the conveying shell is provided with a slag outlet and a control motor for controlling the rotary drum grating and the spiral conveying shaft to rotate, and spiral cutting blades with the direction opposite to that of spiral conveying blades are arranged in the circumferential direction of the spiral conveying shaft, so that dirt can be cut to a certain degree in the dirt conveying process; hair, silk threads and the like are prevented from being wound on the spiral conveying shaft to affect the conveying effect.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, and particularly relates to a spiral grille sewage treatment machine. Background Art

[0002] The spiral grille sewage treatment machine is widely used in the water intakes of sewage treatment plants, drinking water intakes, large hydropower stations, river and lake comprehensive treatment projects, rainwater drainage and sewage lift pump stations and other facilities. The equipment salvages and removes floating objects and sediments at the water intake of the water source, squeezes and dehydrates the sewage, and discharges it after compression.

[0003] However, in the prior art, the conveying device only includes a spiral conveying shaft and spiral conveying blades arranged circumferentially on the conveying shaft. For example, a Chinese patent with the patent number CN 202427238 U discloses a drum-type grille sewage treatment machine, which includes a motor reducer, a spiral conveyor, a flushing device, a diversion device, and a grille basket. The motor reducer is connected to the spiral conveyor; a screw is installed inside the spiral conveyor, the lower part of the spiral conveyor is connected to a grille basket, and there is a pressing cylinder on the spiral conveyor; a discharging device is arranged between the pressing cylinder and the motor reducer; the grille basket is a drum-shaped grille basket made of grille sheets according to the grille gap, the bottom of the grille basket is connected to a diversion device, and a collecting hopper is arranged inside the grille basket; a flushing device is connected between the bottom of the pressing cylinder and the grille basket, and a reflux pipe is connected to the side of the pressing cylinder opposite to the flushing device; the grille basket is fixed in the well through a front leg. In the process of conveying materials by such a spiral conveying device, some dirt such as hair or silk threads in the dirt will be wound around the conveying shaft of the spiral conveying auger, which is very difficult to clean. Summary of the Utility Model

[0004] Utility Model Objective: In order to overcome the problems existing in the prior art, the utility model provides a spiral grille sewage treatment machine. By arranging spiral cutting blades in the circumferential direction of the spiral conveying shaft, which are opposite to the direction of the spiral conveying blades, the dirt can be cut to a certain extent during the conveying process of the dirt, preventing hair and silk threads from winding around the spiral conveying shaft and affecting the conveying effect.

[0005] To solve the above problems, the utility model adopts the following technical solutions:

[0006] A spiral grille sewage remover, comprising a cylindrical drum grille. An inlet is arranged at the front end of the drum grille, and a conveying housing is connected to the rear end. A spiral conveying shaft is coaxially arranged in the conveying housing. The front end of the spiral conveying shaft extends to the front end of the drum grille and is fixedly connected to the drum grille. A collecting cylinder is arranged between the drum grille and the spiral conveying shaft. A slag inlet is opened at the upper end of the collecting cylinder. Spiral conveying blades and spiral cutting blades opposite to the spiral conveying blades are arranged in the circumferential direction of the spiral conveying shaft. A slag outlet and a control motor for controlling the rotation of the drum grille and the spiral conveying shaft are arranged at the rear end of the conveying housing.

[0007] Preferably, a high-pressure flushing device is arranged above the drum grille.

[0008] Preferably, lifting lugs are arranged on the conveying housing.

[0009] Preferably, a brush seat is arranged at the outer end of the bottom of the collecting cylinder, and a brush for brushing the inner wall of the drum grille is installed on the brush seat.

[0010] Preferably, an opening for water flow to pass through is arranged in the middle of the brush seat.

[0011] Preferably, the aperture of the drum grille is 3 - 10 mm.

[0012] Preferably, the included angle between the drum grille and the horizontal direction is 20° - 35°.

[0013] Beneficial effects: Compared with the prior art, the present utility model has the following advantages: By arranging spiral cutting blades opposite to the direction of the spiral conveying blades in the circumferential direction of the spiral conveying shaft, the dirt can be cut to a certain extent during the conveying process, preventing hair, silk threads, etc. from winding around the spiral conveying shaft and affecting the conveying effect. Description of the Drawings

[0014] Figure 1 is the external three-dimensional view of the present utility model;

[0015] Figure 2 is the perspective three-dimensional view of the present utility model;

[0016] Figure 3 is the three-dimensional view of the spiral conveying shaft of the present utility model;

[0017] Figure 4 is the three-dimensional view at the slag inlet of the present utility model;

[0018] Figure 5 is the three-dimensional view at the brush of the present utility model;

[0019] Wherein: 1. Rotary drum grille; 2. Water inlet; 3. Water inlet; 4. Screw conveyor shaft; 41. Screw conveyor blade; 42. Screw cutting blade; 5. Collection cylinder; 6. Slag inlet; 7. Slag outlet; 8. Slag outlet; 9. Ear seat; 10. Brush seat; 11. Brush. Detailed implementation manner

[0020] All features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any way.

[0021] Any feature disclosed in this specification (including any additional claims, abstract, and drawings) can be replaced by other equivalent or similar-purpose alternative features unless specifically stated. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

[0022] As Figures 1-5 As shown, a screw-type grille cleaner includes a cylindrical rotary drum grille 1. A water inlet 2 is provided at the front end of the rotary drum grille 1, and a conveying housing 3 is connected to the rear end. A screw conveyor shaft 4 is coaxially arranged in the conveying housing 3. The front end of the screw conveyor shaft 4 extends to the front end of the rotary drum grille and is fixedly connected to the rotary drum grille. A collection cylinder 5 is arranged between the rotary drum grille 1 and the screw conveyor shaft 4. A slag inlet 6 is opened at the upper end of the collection cylinder. Screw conveyor blades 41 and screw cutting blades 42 opposite to the screw conveyor blades 41 are arranged circumferentially on the screw conveyor shaft 4. A slag outlet 7 and a control motor for controlling the rotation of the rotary drum grille 1 and the screw conveyor shaft 4 are arranged at the rear end of the conveying housing 3. By arranging screw cutting blades opposite to the direction of the screw conveyor blades circumferentially on the screw conveyor shaft, the number of cutting blades can be set to be multiple, so that the dirt can be cut to a certain extent during the conveying process of the dirt, preventing hair filaments, etc. from winding around the screw conveyor shaft and affecting the conveying effect.

[0023] In this embodiment, a high-pressure flushing device 8 is arranged above the rotary drum grille for cleaning the rotary drum grille 1 to wash away the dirt attached to the inner wall of the filtering side wall of the rotary drum grille.

[0024] In this embodiment, ear seats 9 for hoisting are arranged on the conveying housing 3, which can play a role in fixing to the bracket while facilitating hoisting and is convenient for adjusting the angle between the screw conveyor and the horizontal direction.

[0025] In this embodiment, a brush seat 10 is arranged at the outer end of the bottom of the collection cylinder 5, and a brush 11 for brushing the inner wall of the rotary drum grille is installed on the brush seat 10, which is used to clean the inner side wall of the rotary drum grille. And being arranged at the bottom, it can cooperate with the water flow for cleaning, improving the cleaning effect and service life of the brush.

[0026] In this embodiment, an opening for water flow is provided in the middle of the brush seat 10. With this structure, the setting of the brush does not affect the movement of the water flow, avoiding the brush from blocking the water flow and enabling the drum grille to work properly.

[0027] In this embodiment, the aperture of the drum grille 1 is 3 - 10 mm.

[0028] In this embodiment, the angle between the drum grille 1 and the horizontal direction is 20° - 35°.

[0029] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the present utility model, and to completely describe the technical solution, purpose and effect of the present utility model. The purpose is to enable the public to understand the disclosed content of the present utility model more thoroughly and comprehensively, and it does not limit the protection scope of the present utility model.

[0030] The above embodiments are not exhaustive listings based on the present utility model. In addition, there may be multiple other embodiments not listed. Any replacement and improvement made without violating the concept of the present utility model fall within the protection scope of the present utility model.

Claims

1. A spiral grille dirt remover, characterized in that: The invention comprises a cylindrical drum screen (1), wherein the front end of the drum screen (1) is provided with a water inlet (2), and the rear end is connected to a conveying shell (3), a screw conveying shaft (4) is coaxially arranged in the conveying shell (3), the front end of the screw conveying shaft (4) extends to the front end of the drum screen and is fixedly connected to the drum screen, a collecting cylinder (5) is arranged between the drum screen (1) and the screw conveying shaft (4), a slag inlet (6) is opened at the upper end of the collecting cylinder, a spiral conveying blade (41) and a spiral cutting blade (42) opposite to the spiral conveying blade (41) are arranged in the circumference of the spiral conveying shaft (4), and a slag outlet (7) and a control motor for controlling the rotation of the drum screen (1) and the screw conveying shaft (4) are arranged at the rear end of the conveying shell (3).

2. A spiral grille dirt remover according to claim 1, characterized in that: A high-pressure flushing device (8) is provided above the rotary drum grille (1).

3. A spiral grille dirt remover according to claim 1, characterized in that: The conveying housing (3) is provided with an ear seat (9) for hoisting.

4. The spiral grille dirt remover according to claim 1, characterized in that: A brush seat (10) is provided at the outer end of the bottom of the collecting cylinder (5), and a brush (11) for brushing the inner wall of the drum grille is installed on the brush seat (10).

5. A spiral grille dirt remover according to claim 4, characterized in that: An opening for water to flow through is arranged in the middle of the brush seat (10).

6. The spiral grille dirt remover according to claim 1, characterized in that: The aperture of the rotary drum grille (1) is 3-10 mm.

7. The spiral grille dirt remover according to claim 1, characterized in that: The angle between the rotary drum grille (1) and the horizontal direction is 20°-35°.

Images