Method for feeding calcium hydroxide for sewage treatment of power plant

Abstract

The invention discloses a feeding method of calcium hydroxide for power plant sewage treatment, and relates to the field of power plant sewage treatment. A base of a feeding hopper is placed on the edge of the water surface of a power plant sewage treatment pool, a stepping motor is started to enable a feeding barrel to move left and right, an electric valve is started at the same time, and calcium hydroxide particles are fed into the power plant sewage treatment pool; and then the feeding base is pulled to translate, so that the feeding base is positioned on the water surface of the power plant sewage treatment tank to slowly move for feeding. The problems that in the prior art, workers control a feeding ship to move, the danger of inclining is difficult to occur, the workers are likely to fall into a sewage treatment pond, and calcium hydroxide is inconvenient to safely and conveniently put in a hopper are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power plant wastewater treatment method, specifically to a power plant wastewater treatment calcium hydroxide feeding method. BACKGROUND

[0002] Power plant wastewater sources are extensive, mainly divided into the following categories: ash washing wastewater, desulfurization wastewater, industrial wastewater, and sodium hydroxide is added to the sewage to reduce water hardness through neutralization reaction. After searching, the prior art (application number: 201921654770.2) records that "as the feeding ship travels on the surface of the wastewater, the bottom end of the storage hopper can intermittently feed the wastewater inside, and the uniformity of the feeding is guaranteed. Whether the feeding ship moves during the feeding operation is controlled by whether the insertion rod is connected with the circular groove.

[0003] However, in the prior art, the staff operating the feeding ship is difficult to move and may be tilted, which may cause the staff to fall into the wastewater treatment tank, and the hopper is not safe and convenient for calcium hydroxide feeding. SUMMARY

[0004] In order to overcome the defects of the prior art, a power plant wastewater treatment calcium hydroxide feeding hopper is provided to solve the problem of the staff operating the feeding ship being difficult to move and may be tilted, which may cause the staff to fall into the wastewater treatment tank, and the hopper is not safe and convenient for calcium hydroxide feeding.

[0005] To achieve the above purpose, a power plant wastewater treatment calcium hydroxide feeding method is provided: The calcium hydroxide is loaded into the feeding hopper according to the amount; the base of the feeding hopper is placed on the edge of the water surface of the power plant wastewater treatment tank, the step motor is started to move the feeding barrel left and right, and the electric valve is opened to feed the calcium hydroxide particles into the power plant wastewater treatment tank; then the feeding base is pulled to translate, and the feeding base is located on the water surface of the power plant wastewater treatment tank to slowly move the feeding. The step motor drives the screw to rotate through the shaft, and the driving block on the surface of the shaft drives the feeding barrel on the upper end of the moving bottom plate to move left and right.

[0006] The feeding base is welded with a connecting ring block on the upper end surface; the connecting ring block is tied with a rope on the surface, and the electric valve is installed on the surface of the conveying pipe; through the tied rope, the staff can pull the feeding base on the bank of the power plant wastewater treatment tank to move, which is convenient for feeding each part of the power plant wastewater treatment tank.

[0007] The power plant wastewater treatment calcium hydroxide feeding method, the feeding hopper comprises: a feeding base, the feeding base is placed on the water surface of the power plant wastewater treatment tank, a feeding barrel, the feeding barrel is filled with calcium hydroxide particles inside, The lower end surface of the feeding base is fixedly bonded with a floating ring, the feeding base is connected with a lead screw through a stepping motor, the lead screw is fixedly connected with a feeding barrel through a moving plate, and the feeding barrel is connected with a discharging port through a conveying pipe.

[0008] Further, the upper surface of the feeding base is fixedly screwed with a waterproof box, and the waterproof box is fixedly provided with a controller.

[0009] Further, the left side of the feeding base is fixedly provided with a stepping motor, the stepping motor is connected with a lead screw through a rotating shaft, and the surface of the lead screw is connected with a driving block.

[0010] Further, the upper end surface of the feeding base is welded with a connecting ring block, and the surface of the connecting ring block is tied with a rope, and the surface of the conveying pipe is provided with an electric valve.

[0011] Further, the upper end of the feeding barrel is screwed with a sealing cover, and the feeding base is provided with a discharging channel inside; and the conveying pipe penetrates through the inside of the discharging channel.

[0012] Further, the lower end of the feeding barrel is welded with a moving plate, and the lower end of the moving plate is welded with a fixed block; and the lower end of the fixed block is fixed with the driving block.

[0013] Further, the lower end of the moving plate is in contact with the upper surface of the feeding base through a ball bearing, and the groove wall inside the feeding base is connected with a lead screw through a bearing. Advantages

[0014] The power plant sewage treatment calcium hydroxide feeding hopper floats the whole hopper on the water surface of the sewage treatment tank through the floating ring, facilitates the horizontal placement of the feeding hopper on the sewage water surface, facilitates the safe movement of the staff on the bank of the sewage treatment tank, moves the feeding barrel connected to the upper end left and right through the stepping motor, manually pulls the hopper to move to the specified position in the ideal way, and uniformly feeds the calcium hydroxide in the feeding barrel into the sewage treatment tank, so that the calcium hydroxide is more uniformly fed, and the hopper is safe and convenient for feeding calcium hydroxide. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the power plant sewage treatment calcium hydroxide feeding hopper of the embodiment of the application.

[0016] Figure 2 It is a front view structural schematic diagram of the power plant sewage treatment calcium hydroxide feeding hopper of the embodiment of the application.

[0017] Figure 3The top view structural schematic diagram of the calcium hydroxide feeding hopper for power plant sewage treatment of the embodiment of the present application.

[0018] Figure 4 The lower end surface structure schematic diagram of the moving base plate of the embodiment of the present application.

[0019] In the figure: 1, feeding base; 11, connecting ring block; 12, waterproof box; 13, controller; 14, discharging channel; 2, floating ring; 3, feeding barrel; 31, sealing cover; 32, discharging port; 33, conveying pipe; 34, electric valve; 4, stepping motor; 41, rotating shaft; 42, screw rod; 43, driving block; 5, moving base plate; 51, fixed block; 52, ball bearing. DETAILED DESCRIPTION

[0020] The embodiments of the present application are described below through specific concrete examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present specification. The present application can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in the present specification based on different views and applications without departing from the spirit of the present application.

[0021] A calcium hydroxide feeding method for power plant sewage treatment, calcium hydroxide is loaded into a feeding hopper according to the amount; the base of the feeding hopper is placed on the water surface edge of the power plant sewage treatment tank, the stepping motor is started to make the feeding barrel move left and right, and the electric valve is opened to make the calcium hydroxide particles enter the power plant sewage treatment tank; then the feeding base is pulled to translate, so that the feeding base is located on the water surface of the power plant sewage treatment tank to slowly move the feeding. The stepping motor drives the screw rod to rotate through the rotating shaft, so that the driving block on the surface of the rotating shaft drives the feeding barrel on the upper end of the moving base plate to move left and right to feed.

[0022] The connecting ring block is welded on the upper end surface of the feeding base, the rope is tied on the surface of the connecting ring block, and the electric valve is installed on the surface of the conveying pipe; through the tied rope, the staff can pull the feeding base on the bank of the power plant sewage treatment tank to move, which is convenient for feeding each part of the power plant sewage treatment tank.

[0023] The calcium hydroxide feeding method for power plant sewage treatment, the feeding hopper comprises a feeding base 1, the feeding base 1 is placed on the water surface of the power plant sewage treatment tank, a feeding barrel 3, the feeding barrel 3 is filled with calcium hydroxide particles, a floating ring 2 is fixedly bonded to the lower end surface of the feeding base 1, a screw rod 42 is connected to the feeding base 1 through a stepping motor 4, the feeding barrel 3 is fixedly connected to the moving base plate 5 through the screw rod 42, and a discharging port 32 is connected to the lower end of the feeding barrel 3 through a conveying pipe 33; and the discharging port 32 is located at the lower end of the floating ring 2.

[0024] Put the feeding base 1 on the surface of the power plant sewage treatment tank, start the stepper motor 4, make the feeding barrel 3 move left and right, open the electric valve 34, put the calcium hydroxide particles into the power plant sewage treatment tank, pull the feeding base 1 to move horizontally, and make the feeding base 1 slowly move on the surface of the power plant sewage treatment tank.

[0025] In this embodiment, the waterproof box 12 is fixed on the upper surface of the feeding base 1 by screwing, and the controller 13 is fixed inside the waterproof box 12; and the controller 13 is connected with the stepper motor 4 by wires.

[0026] As a preferred embodiment, the waterproof box 12 prevents the controller 13 from being damp. The controller 13 controls the stepper motor 4 to rotate, and controls the opening and closing of the electric valve 34.

[0027] In this embodiment, the stepper motor 4 is fixed inside the left side of the feeding base 1, the stepper motor 4 is connected with the lead screw 42 through the rotating shaft 41, and the driving block 43 is connected on the surface of the lead screw 42.

[0028] As a preferred embodiment, the stepper motor 4 drives the lead screw 42 to rotate through the rotating shaft 41, so that the driving block 43 on the surface of the rotating shaft 41 drives the feeding barrel 3 on the upper end of the moving base 5 to move left and right to feed.

[0029] In this embodiment, the link ring block 11 is welded on the upper end surface of the feeding base 1; and the rope is tied on the surface of the link ring block 11, and the electric valve 34 is installed on the surface of the conveying pipe 33.

[0030] As a preferred embodiment, the link ring block 11 is provided with four groups, and the staff can pull the feeding base 1 to move on the bank of the power plant sewage treatment tank through the tied rope, which is convenient for feeding the power plant sewage treatment tank.

[0031] In this embodiment, the sealing cover 31 is screwed on the upper end of the feeding barrel 3, and the discharging channel 14 is arranged inside the feeding base 1; and the conveying pipe 33 penetrates through the inside of the discharging channel 14.

[0032] As a preferred embodiment, open the sealing cover 31, and put the calcium hydroxide particles into the feeding barrel 3. The discharging channel 14 is convenient for the conveying pipe 33 to move in the channel following the movement of the feeding barrel 3.

[0033] In this embodiment, the moving base 5 is welded on the lower end of the feeding barrel 3, the fixed block 51 is welded on the lower end of the moving base 5; and the fixed block 51 is fixed with the driving block 43.

[0034] As a preferred implementation, the calcium hydroxide particles in the feeding barrel 3 are fed into the power plant sewage treatment tank through the conveying pipe 33, so as to neutralize the acid-base value in the sewage. The driving block 43 facilitates the conversion of the rotary motion of the lead screw 42 into linear motion.

[0035] In this embodiment, the lower end of the movable base plate 5 is in contact with the upper surface of the feeding base 1 through the ball 52, and the groove wall in the feeding base 1 is connected with the lead screw 42 through a bearing.

[0036] As a preferred implementation, the ball 52 facilitates the sliding of the movable base plate 5 on the upper surface of the feeding base 1, so as to make the feeding barrel 3 slide more smoothly on the movable base plate 5.

[0037] The power plant sewage treatment calcium hydroxide feeding hopper can effectively solve the problem of inconvenient and safe feeding of calcium hydroxide, facilitate the safe movement of the hopper on the bank of the sewage treatment tank, and facilitate more uniform feeding of calcium hydroxide. The hopper is safe and convenient for feeding calcium hydroxide, and is suitable for power plant sewage treatment calcium hydroxide feeding hopper.

Claims

1. A method for adding calcium hydroxide for power plant wastewater treatment, characterized in that: Calcium hydroxide is loaded into the feeding hopper according to the amount; the base of the feeding hopper is placed on the edge of the water surface of the power plant sewage treatment tank, the stepper motor is started to move the feeding bucket left and right, and the electric valve is opened at the same time to allow the calcium hydroxide particles to be fed into the power plant sewage treatment tank; then the feeding base is pulled horizontally so that the feeding base is located on the water surface of the power plant sewage treatment tank and slowly moved to feed the material; The stepper motor drives the screw to rotate through the rotating shaft, so that the driving block on the surface of the rotating shaft drives the feeding bucket on the upper end of the mobile bottom plate to move left and right to feed the material; A connecting ring block is welded on the upper surface of the feeding base; a rope is tied to the surface of the connecting ring block, and an electric valve is installed on the conveying pipe surface; through the tied rope, employees can pull the feeding base on the shore of the power plant sewage treatment pool to move it, making it convenient to feed various parts of the power plant sewage treatment pool.

2. The method for dispensing calcium hydroxide for power plant wastewater treatment according to claim 1, wherein: The feeding hopper comprises: a feeding base (1), the feeding base (1) is placed on the water surface of the power plant sewage treatment pool, a feeding bucket (3), the feeding bucket (3) is filled with calcium hydroxide particles, the lower end surface of the feeding base (1) is fixedly bonded with a floating ring (2), the feeding base (1) is connected to a screw rod (42) through a stepping motor (4), the screw rod (42) is fixedly connected to the feeding bucket (3) through a movable bottom plate (5), the lower end of the feeding bucket (3) is connected to a discharge port (32) through a conveying pipe (33); and the discharge port (32) is located at the lower end of the floating ring (2).

3. The power plant wastewater treatment calcium hydroxide delivery method according to claim 2, wherein A waterproof box (12) is screwed and fixed on the upper surface of the feeding base (1), and a controller (13) is fixed inside the waterproof box (12); and the controller (13) is connected to a stepper motor (4) via an electric wire; a stepper motor (4) is fixed inside the left side of the feeding base (1), and the stepper motor (4) is connected to a screw rod (42) via a rotating shaft (41), and a driving block (43) is connected to the surface of the screw rod (42).

4. The power plant wastewater treatment calcium hydroxide delivery method according to claim 2 or 3, wherein A connecting ring block (11) is welded to the upper surface of the feeding base (1); a rope is fastened to the surface of the connecting ring block (11); an electric valve (34) is installed on the surface of the delivery pipe (33); a sealing cover (31) is screwed to the upper end of the feeding bucket (3); a feeding chute (14) is provided inside the feeding base (1); and a delivery pipe (33) is passed through the inside of the feeding chute (14).

5. according to claim 2 or 3 or 4 described power plant wastewater treatment calcium hydroxide throwing method, it is characterized in that, A movable bottom plate (5) is welded to the lower end of the feeding barrel (3), and a fixed block (51) is welded to the lower end of the movable bottom plate (5); and the lower end of the fixed block (51) is fixed to the driving block (43); the lower end of the movable bottom plate (5) contacts the upper surface of the feeding base (1) through a ball (52), and the inner groove wall of the feeding base (1) is connected to a screw rod (42) through a bearing.

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