Ammonia water solution blending device

Abstract

The utility model discloses an ammonia water solution blending device which comprises a blending tank, a liquid ammonia storage tank is arranged on one side of the blending tank, a softened water storage tank is arranged on the other side of the blending tank, communicating pipes are arranged between the liquid ammonia storage tank and the blending tank and between the softened water storage tank and the blending tank, and electric valves are arranged at the ends, located on the inner side of the blending tank, of the communicating pipes. Water pumps are arranged on the communicating pipes on the outer sides of the blending tanks, and flowmeters are arranged on the communicating pipes between the water pumps and the blending tanks. The beneficial effects of the utility model are that the device is reasonable in design, is simple and stable in structure, and is high in practicality; the adding amount of liquid ammonia and softened water can be more accurately controlled while the labor intensity of workers is reduced, and the concentration blending accuracy of the ammonia water solution can also be improved; the liquid ammonia blending device can avoid diffusion of ammonia gas generated in the blending process, ensures the body health of operators, accelerates mixing of liquid ammonia and softened water, improves the blending efficiency, and is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia solution preparation, in particular to an ammonia solution preparation device. Background Art

[0002] Ammonia is a colorless gas with a strong pungent smell. It is very easy to liquefy. When cooled to -33.5℃ at normal pressure or pressurized to 700-800KPa at room temperature, gaseous ammonia liquefies into a colorless liquid. Ammonia water is weakly alkaline and is widely used in chemical industry, fertilizer industry and other industries. It is mainly used to neutralize acid or absorb tail gas containing acidic gas in chemical industry. It is used in huge quantities. At the same time, many industrial production processes such as smelting and chemical industry need to prepare ammonia water solutions of different concentrations.

[0003] At present, the preparation of ammonia water is mainly carried out manually, which makes it inconvenient to control the amount of liquid ammonia and water mixed and to cool the prepared ammonia solution, resulting in a large concentration deviation of the prepared ammonia solution. In addition, a large amount of ammonia gas is easily volatilized during the preparation of ammonia water, which causes a waste of resources and affects the health of the workers. Further development and improvement are needed. Utility Model Content

[0004] The purpose of the utility model is to provide an ammonia solution preparation device in order to solve the problem that the existing ammonia solution is prepared by manual operation, which not only has high labor intensity, but also has large concentration deviation of the prepared ammonia solution. At the same time, a large amount of ammonia gas is easily volatilized during the ammonia solution preparation process, resulting in waste of resources and affecting the health of the workers.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: an ammonia solution mixing device, comprising a mixing tank, a liquid ammonia storage tank is arranged on one side of the mixing tank, and a softened water storage tank is arranged on the other side, a connecting pipe is arranged between the liquid ammonia storage tank and the softened water storage tank and the mixing tank, an electric valve is arranged at one end of the connecting pipe located on the inner side of the mixing tank, a water pump is arranged on the outer side of the connecting pipe, a flow meter is arranged on the connecting pipe between the water pump and the mixing tank, a temperature sensor is arranged at one end of the inner surface of the bottom of the mixing tank, and a concentration sensor is arranged at the other end, a discharge port is arranged on the bottom of the mixing tank on one side of the temperature sensor, an annular cooling water channel is arranged on the circumferential outer surface of the mixing tank, a water inlet pipe is arranged at the top of one side of the annular cooling water channel, and a drain pipe is arranged at the other end.

[0006] Furthermore, a rotating motor is arranged on the top of the mixing tank, and an output end of the rotating motor extends out of the mixing tank and a rotating shaft is installed inside the mixing tank, and stirring plates are equidistantly arranged on the outer surface of the rotating shaft.

[0007] Furthermore, a pressure relief valve is installed on one side of the mixing tank.

[0008] Furthermore, a control device is provided on one side of the softened water storage tank, and the electric valve, the water pump, the flow meter, the temperature sensor, the concentration sensor and the rotating motor are all electrically connected to the control device.

[0009] Furthermore, a discharge valve is provided at the discharge port.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a reasonable design, a simple and stable structure, and strong practicality; by automatically controlling the addition of liquid ammonia and softened water, while reducing the intensity of manual labor, the addition amount of liquid ammonia and softened water can be more accurately controlled; combined with the set annular cooling water channel, the accuracy of the concentration preparation of the ammonia solution can be improved; the preparation process is in a sealed preparation tank, which can avoid the diffusion of ammonia generated during the preparation process and ensure the health of the operator; in addition, the structure combined with the set rotating motor, rotating shaft and stirring plate can accelerate the mixing of liquid ammonia and softened water, improve the efficiency of preparation, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0012] In the figure: 1-mixing tank, 2-liquid ammonia storage tank, 3-softened water storage tank, 4-connecting pipe, 5-electric valve, 6-water pump, 7-flow meter, 8-temperature sensor, 9-concentration sensor, 10-discharge port, 11-annular cooling water channel, 12-water inlet pipe, 13-drain pipe, 14-rotating motor, 15-rotating shaft, 16-stirring plate, 17-control device. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0015] Combination Figure 1 An ammonia solution preparation device shown includes a preparation tank 1, a liquid ammonia storage tank 2 is provided on one side of the preparation tank 1, and a softened water storage tank 3 is provided on the other side, a connecting pipe 4 is provided between the liquid ammonia storage tank 2 and the softened water storage tank 3 and the preparation tank 1, an electric valve 5 is provided at one end of the connecting pipe 4 located on the inner side of the preparation tank 1, a water pump 6 is provided on the outer side of the connecting pipe 4, a flow meter 7 is provided between the connecting pipe 4 and the water pump 6 and the preparation tank 1, a temperature sensor 8 is provided at one end of the inner surface of the bottom of the preparation tank 1, and a concentration sensor 9 is provided at the other end, a discharge port 10 is provided on the side of the temperature sensor 8 at the bottom of the preparation tank 1, an annular cooling water channel 11 is provided on the circumferential outer surface of the preparation tank 1, a water inlet pipe 12 is provided at the top of one side of the annular cooling water channel 11, and a drain pipe 13 is provided at the other end.

[0016] A rotating motor 14 is arranged on the top of the preparation tank 1, and a rotating shaft 15 is installed inside the preparation tank 1 at the output end of the rotating motor 14. A stirring plate 16 is arranged equidistantly on the outer surface of the circumference of the rotating shaft 15, which can accelerate the mixing of liquid ammonia and softened water and improve the efficiency of preparation; a pressure relief valve is installed on one side of the preparation tank 1 to avoid excessive pressure inside the preparation tank 1 and generate safety hazards, and the other end of the pressure relief valve can be connected to a corresponding container to recycle the discharged ammonia; a control device 17 is arranged on one side of the softened water storage tank 3, and the electric valve 5, water pump 6, flow meter 7, temperature sensor 8, concentration sensor 9 and rotating motor 14 are all electrically connected to the control device 17, so as to facilitate the control of the working state of the electric valve 5, water pump 6 and rotating motor 14 through the control device 17, and receive the signals transmitted by the flow meter 7, temperature sensor 8 and concentration sensor 9; a discharge valve is arranged at the discharge port 10 to facilitate the prepared ammonia solution to be discharged from the preparation tank 1.

[0017] When preparing the ammonia solution, according to the concentration and demand of the ammonia solution to be prepared, the water pumps on both sides of the preparation tank are controlled to start working, the electric valve is opened, and with the cooperation of the flow meter, the specified amount of liquid ammonia and softened water are injected into the preparation tank, and then the rotating motor is controlled to drive the rotating shaft to rotate, and the mixed liquid ammonia and softened water are stirred through the stirring plate so that the two are quickly mixed to form an ammonia solution. During the mixing process, the inside of the preparation tank is cooled and cooled through the set annular cooling water channel. After the concentration sensor monitors that the concentration of the internal ammonia solution reaches the specified value, the stirring can be stopped. If the value is too high or too low, liquid ammonia or softened water can be added again for preparation. After the concentration reaches the specified requirement, it can be discharged from the preparation tank through the discharge port for use.

[0018] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0019] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An ammonia solution preparation device, comprising a preparation tank (1), characterized in that: A liquid ammonia storage tank (2) is provided on one side of the mixing tank (1), and a softened water storage tank (3) is provided on the other side. A connecting pipe (4) is provided between the liquid ammonia storage tank (2) and the softened water storage tank (3) and the mixing tank (1). An electric valve (5) is provided at one end of the connecting pipe (4) located inside the mixing tank (1). A water pump (6) is provided on the outside of the mixing tank (1). A flow meter (7) is provided between the connecting pipe (4) and the mixing tank (1). A temperature sensor (8) is provided on one end of the inner surface of the bottom of the mixing tank (1), and a concentration sensor (9) is provided on the other end. A discharge port (10) is provided on the bottom of the mixing tank (1) on one side of the temperature sensor (8). An annular cooling water channel (11) is provided on the circumferential outer surface of the mixing tank (1). A water inlet pipe (12) is provided at the top end of one side of the annular cooling water channel (11), and a drain pipe (13) is provided at the other end.

2. The ammonia solution preparation device according to claim 1, characterized in that A rotating motor (14) is arranged on the top of the mixing tank (1), and an output end of the rotating motor (14) extends out of the mixing tank (1) and is provided with a rotating shaft (15) installed inside the mixing tank (1), and stirring plates (16) are arranged at equal intervals on the outer surface of the circumference of the rotating shaft (15).

3. The ammonia solution preparation device according to claim 1, characterized in that A pressure relief valve is installed on one side of the mixing tank (1).

4. The ammonia solution preparation device according to claim 2, characterized in that A control device (17) is provided on one side of the softened water storage tank (3); the electric valve (5), the water pump (6), the flow meter (7), the temperature sensor (8), the concentration sensor (9) and the rotating motor (14) are all electrically connected to the control device (17).

5. The ammonia solution preparation device according to claim 1, characterized in that The discharge port (10) is provided with a discharge valve.

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