Movable acid liquor preparation and supply device

Abstract

The utility model discloses a movable acid liquor preparation and supply device, which is characterized in that a stirrer and an acid liquor tank are arranged on a trailer, after the trailer is moved to a site, water treated on the site can be used for preparing acid liquor, and then the acid liquor is conveyed to a hardened and blocked supporting layer by a pipeline, so that the acid liquor slowly permeates and dredges hardened and blocked parts; and then, impurities eluted by the acid liquor are removed by utilizing backwashing. The trailer can be dragged to different positions of a factory to be used by different reaction tanks, and is particularly suitable for being used in factories with large areas and dispersed reaction tanks, and after the communication relation of the temporary storage tank, the conveying pump and the acid liquor tank is switched, water can be stored by the temporary storage tank and directly input into the stirrer to produce acid liquor, so that the operation is convenient and fast. In this way, normal pickling work can be carried out when no water source exists on site. The acid liquor production process and the acid liquor conveying process are automatically controlled by the control module, and detection is carried out through a concentration sensor, a flow sensor, a liquid level sensor and the like in the process, so that normal operation of work is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial wastewater treatment, and relates to the innovation of ABR reaction tank pickling technology, in particular to a mobile acid solution preparation and supply device. Background Art

[0002] The support layer in the ABR reaction tank is composed of multiple layers of gravel with different particle sizes. When sewage passes through, some impurities will stick to the irregular surface of the gravel. Although the reaction tank is equipped with a backwashing structure and will be backwashed regularly, some impurities will still remain until the impurities are compacted and blocked at each layer of gravel, which not only reduces the flow of sewage, but also blocks the entire support layer in severe cases, so that the sewage at the bottom of the reaction tank cannot rise to the carrier filter layer. The traditional cleaning method requires emptying the sewage and cleaning the support layer by manpower, which is relatively inefficient. After analyzing the actual blockage, the acid pickling method can solve the problem of compaction and blockage. However, for actual work, acid pickling is not a standard process for ABR reaction tanks. The ABR reaction tanks currently in use are not pre-designed with the equipment area for acid production, and it is impossible for the reaction tanks at different locations in the plant to be built with acid production equipment workshops. Therefore, there is an urgent need for a device that can be used for acid pickling in reaction tanks at different locations in the plant and is easy to use. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a mobile acid solution preparation and supply device.

[0004] The technical solution adopted by the utility model to solve the technical problem is:

[0005] A mobile acid liquid preparation and supply device, characterized in that it includes a trailer and a carriage, the side walls of the carriage are provided with an inlet pipe and an outlet pipe; the inlet pipe is connected to the water inlet of an agitator through a first delivery pump, the water outlet of the agitator is connected to a temporary storage box through a second delivery pump, the temporary storage box is connected to an acid liquid tank, and the acid liquid tank is connected to the outlet pipe through a third delivery pump; the feed port of the agitator is connected to a silo, and the raw materials delivered into the agitator in a quantitative manner are mixed with water to form acid liquid.

[0006] Furthermore: an electric control valve is connected in series between the inlet pipe and the first delivery pump, and an electric control valve and a flow regulating valve are connected in series between the first delivery pump and the water inlet of the agitator.

[0007] Further: an electric control valve is connected in series between the water outlet of the agitator and the second delivery pump, and an electric control valve is connected in series between the second delivery pump and the temporary storage box;

[0008] An electric control valve and a flow regulating valve are connected in series between the temporary storage box and the acid liquid tank.

[0009] Furthermore: an electric control valve is connected in series between the acid liquid tank and the third delivery pump, and an electric control valve and a flow regulating valve are connected in series between the third delivery pump and the outlet pipe.

[0010] Further: the agitator is provided with a detection module, and the temporary storage box and the acid liquid tank are both provided with detection modules.

[0011] Furthermore: a screw feeder is provided at the outlet of the silo, and the outlet of the screw feeder is connected to the feed inlet of the agitator.

[0012] Furthermore: the carriage is provided with a control box, and the control module in the control box is connected to all the electric control valves, all the flow regulating valves, all the delivery pumps, agitators, screw feeders and detection modules.

[0013] Further:

[0014] A connecting branch pipe is provided between the first delivery pump and the temporary storage tank, and an electric control valve is provided at both ends of the connecting branch pipe; the connecting branch pipe is used to deliver the liquid in the temporary storage tank to the first delivery pump;

[0015] An output branch pipe is arranged between the second delivery pump and the acid liquid tank, and an electric control valve and a flow regulating valve are arranged on the output branch pipe; the output branch pipe is used to connect the second delivery pump with the acid liquid tank when the connecting branch pipe connects the first delivery pump with the temporary storage tank.

[0016] The technical effects achieved by the utility model are:

[0017] In the utility model, an agitator and an acid tank are arranged on the trailer. After being moved to the site, the acid can be configured using the treated water on site, and then the acid is transported to the compacted and blocked supporting layer using a pipeline, so that the acid slowly penetrates and clears the compacted and blocked areas, and then the impurities eluted by the acid are removed by backwashing. The trailer can be dragged to different locations in the factory area for use in different reaction pools, and is particularly suitable for use in factories with large areas and relatively dispersed reaction pools. Moreover, after switching the connection relationship between the temporary storage box, the delivery pump and the acid tank, the temporary storage box can be used to store water and directly input into the agitator to produce acid, so that the normal pickling work can be carried out when there is no water source on site. The above-mentioned acid production process and delivery process are all automatically controlled by the control module, and during the process, the concentration, flow, liquid level and other sensors are used for detection to ensure the normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 yes Figure 1Schematic diagram of the interior of the carriage;

[0020] Figure 3 This is a schematic diagram of the interior of a carriage with another structure. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not restrictive, and the protection scope of the present invention cannot be limited by them.

[0022] A mobile acid liquid preparation and supply device comprises a trailer 8 and a carriage 3, wherein the side wall of the carriage is provided with an inlet pipe 2 and an outlet pipe 6. The inlet pipe is connected to a water inlet 23 of a stirrer 13 through a first delivery pump 11a, and a water outlet 26 of the stirrer is connected to a temporary storage box 21 through a second delivery pump 11b, and the temporary storage box is connected to an acid liquid tank 25, and the acid liquid tank is connected to the outlet pipe through a third delivery pump 11c. The feed port 22 of the stirrer is connected to a silo 15, and the raw materials quantitatively delivered to the stirrer by the silo are mixed with water to form acid liquid.

[0023] The front end of the trailer is provided with a traction arm 1, which can be connected to a special tractor or an ordinary civilian vehicle, so that any vehicle on site can realize the movement of the trailer under the permission of the vehicle power and the connection structure. A maintenance door 5 for people to enter and exit is installed on the carriage, and a transparent window 4 is installed on the upper end of the maintenance door. After the maintenance door is opened, the operator can enter the carriage to inspect the equipment, pipelines, etc., or pour raw materials into the silo or test the electronic equipment.

[0024] like Figure 2 As shown, a car interior structure is: an electric control valve 10 is connected in series on the pipeline between the inlet pipe and the first delivery pump 11a, and an electric control valve 10 and a flow control valve 7 are connected in series on the connecting pipeline 12 between the first delivery pump and the water inlet of the agitator. An electric control valve 10 is connected in series between the water outlet of the agitator and the second delivery pump 11b, and an electric control valve 10 is connected in series on the connecting pipeline 12 between the second delivery pump 11b and the temporary storage box. An electric control valve 10 and a flow control valve 7 are connected in series on the connecting pipeline 12 between the temporary storage box and the acid liquid tank. An electric control valve 10 is connected in series on the water outlet 26 between the acid liquid tank and the third delivery pump 11c, and an electric control valve 10 and a flow control valve 7 are connected in series between the third delivery pump 11c and the outlet pipe.

[0025] The above-mentioned pipelines, boxes and other equipment that come into contact with water and acid are all made of stainless steel. The electric control valve can be controlled by a remote control module to be electrically opened or closed, and the flow control valve is controlled by a remote control module to achieve electric adjustment of the opening (flow control). These valves are all acid-resistant models, and the flow control valve is preferably a product with flow detection. Of course, for work safety, it is also necessary to connect some manual valves in series on each pipeline. The specific location and specifications are all prior art and will not be described in detail here.

[0026] The agitator is provided with a detection module 20, and the temporary storage box and the acid tank are both provided with a detection module 20. The above detection modules include sensors such as liquid level, temperature, and concentration that are commonly used in liquid production and transportation. For example, the agitator requires at least sensors for liquid level, temperature, and concentration detection, and the temporary storage box and the acid tank require at least sensors for liquid level and concentration detection. The installation positions, wiring, and data debugging of these sensors are all existing technologies and are not described in detail here.

[0027] A bracket 16 is provided on the side wall, top or bottom of the carriage, and a silo is fixedly placed on the bracket. The silo has a dustproof and waterproof upper cover, a trumpet-shaped lower end and a silo outlet 17 connected to the lower end. In order to realize the quantitative conveying of materials in the silo, a spiral feeder 18 can be provided at the silo outlet 17, and the outlet of the spiral feeder is connected to the feed inlet 22 of the agitator. The spiral feeder rotates slowly under the drive of the feeding motor 19, and the spiral conveying component inside the spiral feeder also selects a structure with a smaller spiral blade spacing, so that the fine conveying of materials can be realized as much as possible. Of course, in order to detect the amount of materials inside the silo, a silo with a weighing function can also be selected, and the weight of the remaining materials inside the silo can be regularly detected. The weight data can enable the operator to regularly refill the material. A stirring motor 14 is installed on the upper end of the agitator. The stirring motor is connected to the stirring blades extending into the inside of the agitator. The stirring blades rotate regularly to fully mix the materials with water.

[0028] A control box 9 is provided at a convenient position in the carriage, and the control module in the control box is connected to the control ends of all the electric control valves, the control ends and detection ends of all the flow regulating valves, the control ends of all the delivery pumps, the motor control ends of the agitators, the motor control ends of the screw feeders and the output ends of all the sensors in the detection module. The control module can be an Android control system with software and hardware integrated together, or a PLC integrated system or an integrated industrial computer. Regardless of the type of control device, its connection with other electronic devices, data transmission and necessary protection measures are all prior art and will not be described in detail here.

[0029] In the above structure, after the trailer is towed to the scene, the inlet pipe can be connected to the water source (such as: treated water or other water that can be used) on the scene through a hose or a hard pipe, and the pump and the agitator are started. The citric acid crystals in the water and the silo enter the agitator at the same time, and are first transported to the temporary storage box after fully mixing, and then transported to the acid liquid tank, and the acid liquid flows out from the outlet pipe to the reaction tank. The purpose of the temporary storage box and the acid liquid tank being arranged separately is to play a buffering role when the flow of the acid liquid increases, so that the agitator can have enough time to mix the citric acid crystals and water, and the amount of liquid in the temporary storage box and the acid liquid tank can be detected by a liquid level sensor and continuously supplemented by a pump. The temporary storage box is fixedly placed on the elevated 24, and the acid liquid in the temporary storage box can directly flow to the acid liquid tank with a lower height by gravity.

[0030] Some on-site water sources in some factories either do not meet the cleanliness requirements or are a certain distance away. In this case, the above structure will cause inconvenience in use. Therefore, the following improved structure is adopted, specifically Figure 3 As shown:

[0031] The temporary storage tank is used to store raw water. Figure 2 On the basis of the structure, a connecting branch pipe 27 is set between the first delivery pump 11a and the temporary storage tank 21, and an electric control valve 10 is set at the ends of both sides of the connecting branch pipe. The left end of the connecting branch pipe in the figure is connected in parallel to the pipeline between the electric control valve of the inlet pipe and the inlet of the first delivery pump 11a, and the right end of the connecting branch pipe in the figure is connected to the outlet 28 at the lower end of the temporary storage tank. When the connecting pipeline 12 between the first delivery pump 11a and the agitator is cut off by the electric control valve on the pipeline, the connecting branch pipe enables the raw water stored in the temporary storage tank to be directly transported to the first delivery pump 11a.

[0032] An output branch pipe 29 is set between the second delivery pump 11b and the acid liquid tank 25, and an electric control valve 10 and a flow regulating valve 7 are set on the output branch pipe. The left end of the output branch pipe is connected in parallel on the pipeline between the outlet of the second delivery pump 11b and the electric control valve of the communication pipeline, and the output branch pipe is directly connected to the import of the upper end of the acid liquid tank. When the communication pipeline 12 between the second delivery pump 11b and the temporary storage box was cut off by the electric control valve on the pipeline, the delivery branch pipe made the second delivery pump 11b directly deliver the acid liquid configured by the agitator to the acid liquid tank.

[0033] The improved structure actually turns the temporary storage tank into a water tank, and then uses the water and citric acid crystals in the tank to mix in the agitator, and then transports them to the acid tank for standby use. The switching of different working modes is achieved by switching the electric control valve and the conduction or cutoff of various pipelines.

[0034] In the utility model, an agitator and an acid tank are arranged on the trailer. After being moved to the site, the acid can be configured using the treated water on site, and then the acid is transported to the compacted and blocked supporting layer using a pipeline, so that the acid slowly penetrates and clears the compacted and blocked areas, and then the impurities eluted by the acid are removed by backwashing. The trailer can be dragged to different locations in the factory area for use in different reaction pools, and is particularly suitable for use in factories with large areas and relatively dispersed reaction pools. Moreover, after switching the connection relationship between the temporary storage box, the delivery pump and the acid tank, the temporary storage box can be used to store water and directly input into the agitator to produce acid, so that the normal pickling work can be carried out when there is no water source on site. The above-mentioned acid production process and delivery process are all automatically controlled by the control module, and during the process, the concentration, flow, liquid level and other sensors are used for detection to ensure the normal operation.

Claims

1. A mobile acid solution preparation and supply device, characterized in that: It includes a trailer and a carriage, and the side wall of the carriage is provided with an inlet pipe and an outlet pipe; the inlet pipe is connected to the water inlet of the agitator through a first delivery pump, the water outlet of the agitator is connected to a temporary storage box through a second delivery pump, the temporary storage box is connected to an acid liquid tank, and the acid liquid tank is connected to the outlet pipe through a third delivery pump; the feed port of the agitator is connected to a silo, and the raw materials delivered to the agitator in a quantitative manner by the silo are mixed with water to form acid liquid.

2. A mobile acid solution preparation and supply device according to claim 1, characterized in that: An electric control valve is connected in series between the inlet pipe and the first delivery pump, and an electric control valve and a flow regulating valve are connected in series between the first delivery pump and the water inlet of the stirrer.

3. A mobile acid solution preparation and supply device according to claim 2, characterized in that: An electric control valve is connected in series between the water outlet of the agitator and the second delivery pump, and an electric control valve is connected in series between the second delivery pump and the temporary storage tank; An electric control valve and a flow regulating valve are connected in series between the temporary storage box and the acid liquid tank.

4. A mobile acid solution preparation and supply device according to claim 3, characterized in that: An electric control valve is connected in series between the acid liquid tank and the third delivery pump, and an electric control valve and a flow regulating valve are connected in series between the third delivery pump and the outlet pipe.

5. The mobile acid solution preparation and supply device according to claim 4, characterized in that: The stirrer is provided with a detection module, and the temporary storage box and the acid liquid tank are both provided with detection modules.

6. A mobile acid solution preparation and supply device according to claim 5, characterized in that: A screw feeder is arranged at the outlet of the silo, and the outlet of the screw feeder is connected to the feed inlet of the stirrer.

7. The mobile acid solution preparation and supply device according to claim 6, characterized in that: The carriage is provided with a control box, and a control module in the control box is connected with all the electric control valves, all the flow regulating valves, all the delivery pumps, agitators, screw feeders and the detection module.

8. A mobile acid solution preparation and supply device according to claim 4, 5, 6 or 7, characterized in that: A connecting branch pipe is provided between the first delivery pump and the temporary storage tank, and an electric control valve is provided at both ends of the connecting branch pipe; the connecting branch pipe is used to deliver the liquid in the temporary storage tank to the first delivery pump; An output branch pipe is arranged between the second delivery pump and the acid liquid tank, and an electric control valve and a flow regulating valve are arranged on the output branch pipe; the output branch pipe is used to connect the second delivery pump with the acid liquid tank when the connecting branch pipe connects the first delivery pump with the temporary storage tank.

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