Environment-friendly sand washing system

Abstract

According to the environment-friendly sand washing system, the number of wheel type sand washing machines is two, the wheel type sand washing machines are sequentially arranged side by side and comprise the primary sand washing machine and the fine sand washing machine, a water pump is arranged between the primary sand washing machine and the fine sand washing machine, a water pumping pipe is arranged between the water pump and the fine sand washing machine, and a water drainage pipe is arranged between the water pump and the primary sand washing machine; sewage discharged by the primary sand washing machine flows to the sewage purification tank, a vibrating screen is arranged at the front end of the primary sand washing machine, a dewatering screen is arranged at the rear end of the fine sand washing machine, a conveying belt is arranged between the dewatering screen and the fine sand washing machine, and a pipeline is arranged between the sewage purification tank and a water inlet of the fine sand washing machine; according to the utility model, zero discharge of sewage in the sand washing process is realized, water resources are saved, resource waste is reduced, and maximization of production economic benefits is realized.

Description

Technical Field

[0001] The utility model relates to the field of sand washing equipment, in particular to an environmentally friendly sand washing system. Background Art

[0002] In the process of sand washing, sand washing machines are generally used. Sand washing machines are widely used in sand and gravel fields, mines, building materials, transportation, chemicals, water conservancy and hydropower, concrete mixing stations and other industries. They can remove impurities covering the surface of sand and gravel, and destroy the water vapor layer covering the sand particles to facilitate dehydration and play an efficient sand washing and cleaning role. With the continuous deepening of the concept of environmental protection, most of the sand mining and sand washing processes will use water washing, which mixes sand and gravel with water, and then cleans the slurry to obtain finished sand. However, the existing sand washing process causes serious water pollution and waste, which pollutes the environment. This problem requires the optimization of the sand washing process and water control, and the optimization of the combined use of sand washing equipment.

[0003] In view of the above reasons, an environmentally friendly sand washing system has been developed. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an environmentally friendly sand washing system, which achieves zero sewage discharge in the sand washing process, saves water resources, reduces resource waste, and maximizes production economic benefits.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an environmentally friendly sand washing system, comprising a wheel sand washing machine and a sewage purification tank, the sewage purification tank comprises water for supplying sand washing, the number of the wheel sand washing machines is two, and they are arranged side by side, the two wheel sand washing machines are arranged from front to back as a primary sand washing machine and a fine sand washing machine, the wheel sand washing machine is provided with a drainage outlet, a water pump is arranged between the primary sand washing machine and the fine sand washing machine, a suction pipe is arranged between the pumping end of the water pump and the drainage outlet of the fine sand washing machine, a drainage pipe is arranged between the drainage end of the water pump and the primary sand washing machine, the sewage discharged by the primary sand washing machine flows to the sewage purification tank, a vibrating screen is arranged at the front end of the primary sand washing machine, a dewatering screen is arranged at the rear end of the fine sand washing machine, a conveyor belt is arranged between the dewatering screen and the fine sand washing machine, the front end of the conveyor belt is located below the sand outlet end of the fine sand washing machine, and the rear end of the conveyor belt is located above the dewatering screen, and a pipeline is arranged between the sewage purification tank and the water inlet of the fine sand washing machine.

[0006] Furthermore, a first sieve plate and a second sieve plate are provided in the vibrating screen; the first sieve plate and the second sieve plate are arranged obliquely; a first discharge pipe is provided between the first sieve plate and the second sieve plate; a second discharge pipe is provided on the second sieve plate; and the discharge port of the second discharge pipe is located at the front end above the primary sand washing machine.

[0007] Furthermore, two stirring rods are arranged side by side at the lower end of the sand washing trough of the primary sand washing machine, the stirring rod adopts a spiral stirring rod, a passive wheel is arranged at the front end of the stirring rod, a transmission belt is arranged between the passive wheels of the two stirring rods, and a driving wheel is arranged at the front end of the rotating shaft of the primary sand washing machine, and a transmission belt is arranged between the driving wheel and the adjacent passive wheel.

[0008] Furthermore, a spray mechanism is provided on the dewatering screen, a fine sand sedimentation tank is arranged below the dewatering screen, water in the fine sand sedimentation tank overflows into the sewage purification tank through a pipe on one side of the fine sand sedimentation tank, a vibration motor is provided on the dewatering screen, and a sand discharge trough is provided on one side of the dewatering screen.

[0009] The beneficial effects of the utility model are as follows: the equipment used in the utility model are all purchased from the market, the water from the fine sand washing machine is transported to the primary sand washing machine for reuse through a water pump, and the sewage from the primary sand washing machine is discharged to the sewage purification pool, which continuously filters and deposits the sewage with a lot of turbid impurities, and then discharges these deposited impurities, and the sewage is filtered again and transported to the fine sand washing machine for reuse by a water pump, which can continuously wash the yellow sand, and the water is reused in the whole process, without wasting a large amount of water resources, in addition, no flocculant is used, and no toxic chemicals are produced; the utility model realizes zero discharge of sewage in the sand washing process, saves water resources, reduces waste of resources, and realizes maximization of production economic benefits; the parts not introduced in detail in the utility model are existing commonly used technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings:

[0011] Figure 1 It is a schematic diagram of the general assembly structure;

[0012] Figure 2 This is a schematic diagram of the structure of the primary sand washing machine;

[0013] In the figure: vibrating screen 1, wheel sand washing machine 2, driving wheel 2.1, stirring rod 2.2, transmission belt 2.3, conveyor belt 3, dewatering screen 4, sewage purification tank 5, fine sand sedimentation tank 6. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] like Figure 1As shown, an environmentally friendly sand washing system includes a wheeled sand washing machine 2 and a sewage purification tank 5. The sewage purification tank 5 includes water for supplying sand washing. The number of the wheeled sand washing machines 2 is two, and they are arranged side by side. The two wheeled sand washing machines 2 are arranged from front to back as a primary sand washing machine and a fine sand washing machine. The wheeled sand washing machine 2 is provided with a drainage outlet. A water pump is arranged between the primary sand washing machine and the fine sand washing machine. A suction pipe is arranged between the pumping end of the water pump and the drainage outlet of the fine sand washing machine. A drainage pipe is arranged between the drainage end of the water pump and the primary sand washing machine. The sewage discharged by the primary sand washing machine flows to the sewage purification tank 5. A vibrating screen 1 is arranged at the front end of the primary sand washing machine, and a dewatering screen 4 is arranged at the rear end of the fine sand washing machine. A conveyor belt 3 is arranged between the dewatering screen 4 and the fine sand washing machine. The front end of the conveyor belt 3 is located below the sand outlet end of the fine sand washing machine, and the rear end of the conveyor belt 3 is located above the dewatering screen 4. A pipeline is arranged between the sewage purification tank 5 and the water inlet of the fine sand washing machine.

[0016] The vibrating screen 1 is provided with a first sieve plate and a second sieve plate; the first sieve plate and the second sieve plate are arranged obliquely; a first discharge pipe is provided between the first sieve plate and the second sieve plate; a second discharge pipe is provided on the second sieve plate; the discharge port of the second discharge pipe is located at the front end above the primary sand washing machine.

[0017] like Figure 2 The sand washing trough of the primary sand washing machine is provided with two stirring rods 2.2 arranged side by side at the lower end thereof, the stirring rod 2.2 being a spiral stirring rod, a passive wheel being arranged at the front end of the stirring rod 2.2, a transmission belt 2.3 being arranged between the passive wheels of the two stirring rods 2.2, a driving wheel 2.1 being arranged at the front end of the rotating shaft of the primary sand washing machine, a transmission belt 2.3 being arranged between the driving wheel 2.1 and the passive wheel adjacent to the driving wheel 2.1, the rotating shaft of the primary sand washing machine drives the stirring rods 2.2 to rotate through the driving wheel 2.1, the passive wheel and the transmission belt 2.3, and the stirring rods 2.2 drive the rotation of the sand washing trough of the primary sand washing machine, so as to prevent the sludge in the sand washing trough of the primary sand washing machine from settling and blocking the water outlet.

[0018] The dewatering screen 4 is provided with a spray mechanism, a fine sand sedimentation tank 6 is arranged below the dewatering screen 4, water in the fine sand sedimentation tank 6 overflows into the sewage purification tank 5 through a pipe on one side of the fine sand sedimentation tank 6, a vibration motor is provided on the dewatering screen 4, and a sand discharge trough is provided on one side of the dewatering screen 4.

[0019] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An environmentally friendly sand washing system, comprising a wheeled sand washing machine (2), a sewage purification tank (5), the sewage purification tank (5) comprising a supply of sand washing water, characterized in that: The wheeled sand washing machines (2) are two in number and arranged side by side. The two wheeled sand washing machines (2) are arranged from front to back as a primary sand washing machine and a fine sand washing machine. The wheeled sand washing machines (2) are provided with a drainage outlet. A water pump is provided between the primary sand washing machine and the fine sand washing machine. A water pump pipe is provided between the water pumping end and the drainage outlet of the fine sand washing machine. A drainage pipe is provided between the drainage end of the water pump and the primary sand washing machine. Sewage discharged from the primary sand washing machine flows into a sewage purification tank (5). A vibrating screen (1) is provided at the front end of the primary sand washing machine. A dewatering screen (4) is provided at the rear end of the fine sand washing machine. A conveyor belt (3) is provided between the dewatering screen (4) and the fine sand washing machine. The front end of the conveyor belt (3) is located below the sand outlet end of the fine sand washing machine. The rear end of the conveyor belt (3) is located above the dewatering screen (4). A pipe is provided between the sewage purification tank (5) and the water inlet of the fine sand washing machine.

2. The environmentally friendly sand washing system according to claim 1, characterized in that: The vibrating screen (1) is provided with a first sieve plate and a second sieve plate; the first sieve plate and the second sieve plate are arranged obliquely; a first discharge pipe is provided between the first sieve plate and the second sieve plate; a second discharge pipe is provided on the second sieve plate; the discharge port of the second discharge pipe is located above the front end of the primary sand washing machine.

3. The environmentally friendly sand washing system according to claim 1, characterized in that: Two stirring rods (2.2) are arranged side by side at the lower end of the sand washing tank of the primary sand washing machine, the stirring rods (2.2) are spiral stirring rods, a passive wheel is arranged at the front end of the stirring rods (2.2), a transmission belt (2.3) is arranged between the passive wheels of the two stirring rods (2.2), a driving wheel (2.1) is arranged at the front end of the rotating shaft of the primary sand washing machine, and a transmission belt (2.3) is arranged between the driving wheel (2.1) and the adjacent passive wheel.

4. The environmentally friendly sand washing system according to claim 1, characterized in that: The dewatering screen (4) is provided with a spray mechanism, a fine sand sedimentation tank (6) is arranged below the dewatering screen (4), water in the fine sand sedimentation tank (6) overflows into the sewage purification tank (5) through a pipe on one side of the fine sand sedimentation tank (6), a vibration motor is provided on the dewatering screen (4), and a sand discharge trough is provided on one side of the dewatering screen (4).

Images