Sodium bicarbonate alkali liquor recycling and filtering device

Abstract

The utility model relates to the technical field of recycling and filtering, and discloses a baking soda alkali liquor recycling and filtering device which comprises a base, and a stirring tank, a clarifying barrel, a constant-temperature heating device, a buffer tank and a filtering device are mounted on the base. The utility model discloses a waste alkali liquor recycling device which is characterized in that an alkali liquor recycling and filtering device is additionally arranged on the basis of an existing device aiming at the characteristics of alkali liquor, and impurities (such as ferrous ions and other metal impurity ions) of the alkali liquor with enriched impurities in a filter are removed, so that the alkali liquor can be directly recycled to an alkali liquor system after being filtered and adsorbed; the device realizes recycling of the waste alkali liquor at low cost, does not cause any influence and interference on the existing production process, is high in universality, low in cost and simple to operate, can improve the raw material utilization rate of baking soda production by recycling the alkali liquor, reduces the discharge amount of pollutants, realizes emission reduction and consumption reduction, and is suitable for industrial production. And meanwhile, the requirements of current country and soda ash industry on energy conservation and emission reduction development are met.

Description

Technical Field

[0001] The utility model relates to the technical field of recycling and filtering, in particular to a baking soda alkali solution recycling and filtering device. Background Art

[0002] Currently, due to the influence of production technology, management methods and production conditions, the raw material utilization rate of baking soda plants attached to existing soda ash enterprises is not satisfactory. There is basically an excess of alkali solution, resulting in waste of raw materials. If this part of the alkali solution can be recycled into the production system and its effective ingredients can be utilized to reduce consumption costs, it will definitely create more economic benefits for the company and is of great significance to environmental protection.

[0003] Excess alkali liquid is often affected by the filter operation cycle. At present, the common PE filter needs to be cleaned once a day on average, which is the main reason for the generation of alkali liquid. In addition, the alkali liquid produced contains a large amount of impurities such as iron ions, and the alkali liquid is red. If it is directly recycled, it will have a significant impact on the quality of baking soda products. At present, the alkali liquid produced by existing filtration is directly recycled into the wastewater system, which does not reflect the economic value of the alkali liquid. Therefore, it is urgent to find a new alkali liquid recycling process to improve the resource utilization rate of baking soda alkali liquid. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a sodium bicarbonate alkali solution recovery and filtering device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a baking soda alkali solution recovery and filtration device, comprising a base, on which a stirring tank, a clarification barrel, a constant temperature heating device, a buffer tank, and a filtration device are installed, a liquid inlet pipe is installed on one side of the stirring tank, a valve is provided on the liquid inlet pipe, a feed port is provided at the top of the stirring tank, a liquid outlet pump is installed in the feed port, a delivery pipe is provided on one side of the liquid outlet pump, the delivery pipe is installed in the clarification barrel away from the side of the liquid outlet pump, and the delivery pipe passes through and is fixedly connected to the clarification barrel.

[0006] As a further description of the above technical solution:

[0007] A delivery pipe 2 is provided on one side of the clarification barrel, and the delivery pipe 2 is installed in a constant temperature heating device on the side away from the clarification barrel. A delivery pipe 3 is installed on the side of the constant temperature heating device away from the delivery pipe 2, and the delivery pipe 3 is installed in a buffer tank on the side away from the constant temperature heating device.

[0008] As a further description of the above technical solution:

[0009] A delivery pipe five is installed on one side of the buffer tank, and the delivery pipe five is installed on a filter device away from the side of the buffer tank. A liquid outlet pipe is installed on one side of the filter device.

[0010] The utility model has the following beneficial effects:

[0011] 1. The utility model discloses a device for recycling waste alkali liquid. According to the characteristics of alkali liquid, an alkali liquid recovery and filtering device is added on the basis of the existing device to remove impurities (such as divalent iron ions and other metal impurity ions) from the alkali liquid enriched in the filter, so that the alkali liquid can be directly recovered to the alkali liquid system after filtering and adsorption, thereby realizing the recycling of waste alkali liquid at low cost and without causing any influence or interference to the existing production process. The device has strong versatility, low cost and simple operation. The recycling of alkali liquid can improve the raw material utilization rate of baking soda production, reduce the emission of pollutants, achieve emission reduction and consumption reduction, and meet the current requirements of the country and the soda ash industry for energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a sodium bicarbonate alkali solution recovery and filtration device proposed in the utility model. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of a sodium bicarbonate alkali solution recovery and filtration device proposed in the utility model. Figure 2 ;

[0014] Figure 3 The utility model discloses an internal schematic diagram of a baking soda alkali solution recovery and filtering device.

[0015] Legend:

[0016] 1. Base; 2. Mixing tank; 3. Clarifying tank; 4. Constant temperature heating device; 5. Buffer tank; 6. Filter device; 7. Liquid inlet pipe; 8. Liquid outlet pipe; 9. Delivery pipe five; 10. Feed inlet; 11. Liquid outlet pump; 12. Delivery pipe one; 13. Delivery pipe two; 14. Delivery pipe three; 15. Valve. DETAILED DESCRIPTION

[0017] 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.

[0018] Reference Figure 1-Figure 3The utility model provides an embodiment: a sodium bicarbonate alkali solution recovery and filtering device, comprising a base 1, on which a stirring tank 2, a clarification barrel 3, a constant temperature heating device 4, a buffer tank 5, and a filtering device 6 are installed, a liquid inlet pipe 7 is installed on one side of the stirring tank 2, and a valve 15 is provided on the liquid inlet pipe 7, a feed port 10 is provided at the top of the stirring tank 2, a liquid discharge pump 11 is installed in the feed port 10, a delivery pipe 12 is provided on one side of the liquid discharge pump 11, and the delivery pipe 12 is installed in the clarification barrel 3 away from the side of the liquid discharge pump 11, and the delivery pipe 12 passes through and is fixedly connected to the clarification barrel 3.

[0019] A delivery pipe 2 13 is provided on one side of the clarification barrel 3, and the delivery pipe 2 13 is installed in the constant temperature heating device 4 on the side away from the clarification barrel 3. A delivery pipe 3 14 is installed on the side of the constant temperature heating device 4 away from the delivery pipe 2 13. The delivery pipe 3 14 is installed in the buffer tank 5 on the side away from the constant temperature heating device 4. A delivery pipe 5 9 is installed on one side of the buffer tank 5. The delivery pipe 5 9 is installed on the side away from the buffer tank 5 to the filtering device 6, and a liquid outlet pipe 8 is installed on one side of the filtering device 6.

[0020] Working principle: the waste alkali liquid of baking soda is sent into the mixing tank 2 through the waste liquid pump via the liquid inlet pipe 7, and the specific adsorbent is added into the mixing tank 2 through the feed port 10 in combination with the distribution device to complete the preliminary impurity removal of the waste alkali liquid, and then the liquid outlet pump 11 is turned on, and the treated alkali liquid is sent to the clarification barrel 3 for clarification through the delivery pipe 1 12, and enters the constant temperature heating device through the delivery pipe 2 13 through the overflow, and then the heated alkali liquid is sent to the buffer tank 5 through the delivery pipe 3 14, and then enters the filtering device 6 through the delivery pipe 5 9 for treatment to obtain the final filtered alkali liquid, and then the alkali-making, filtering, carbonization and other processes are carried out according to the baking soda production process to produce baking soda products.

[0021] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sodium bicarbonate alkali solution recovery and filtration device, comprising a base (1), characterized in that: The base (1) is provided with a stirring tank (2), a clarification tank (3), a constant temperature heating device (4), a buffer tank (5), and a filtering device (6); a liquid inlet pipe (7) is provided on one side of the stirring tank (2); a valve (15) is provided on the liquid inlet pipe (7); a feed inlet (10) is provided on the top of the stirring tank (2); a liquid discharge pump (11) is provided in the feed inlet (10); a delivery pipe (12) is provided on one side of the liquid discharge pump (11); a side of the delivery pipe (12) away from the liquid discharge pump (11) is installed in the clarification tank (3); and the delivery pipe (12) passes through and is fixedly connected to the clarification tank (3).

2. A sodium bicarbonate alkali solution recovery and filtration device according to claim 1, characterized in that: A second delivery pipe (13) is provided on one side of the clarification barrel (3); a side of the second delivery pipe (13) away from the clarification barrel (3) is installed in the constant temperature heating device (4); a third delivery pipe (14) is installed on the side of the constant temperature heating device (4) away from the second delivery pipe (13); a side of the third delivery pipe (14) away from the constant temperature heating device (4) is installed in the buffer tank (5).

3. A sodium bicarbonate alkali solution recovery and filtration device according to claim 2, characterized in that: A delivery pipe five (9) is installed on one side of the buffer tank (5), and the delivery pipe five (9) is installed on a filter device (6) away from the buffer tank (5). A liquid outlet pipe (8) is installed on one side of the filter device (6).

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