Negative pressure type circulating water treatment rectifying tower for ethanol rectification

Abstract

The utility model provides a negative pressure type circulating water treatment rectifying tower for ethanol rectification, which relates to the technical field of water treatment rectifying towers, and comprises a rectifying tower body, two tower plates are fixedly connected to the inner walls of the two sides of the rectifying tower body respectively, and a first arc-shaped baffle and a second arc-shaped baffle are fixedly connected to the top of each tower plate and close to the two sides respectively. A round hole is formed in the surface of the tower plate and located between the first arc-shaped baffle and the second arc-shaped baffle, floating valves are installed at the positions, located at the round hole, of the top of the tower plate, a connecting pipe is fixed and communicated with the position, close to the top, of the surface of the rectifying tower body, and a settling tank is fixed and communicated with one end of the connecting pipe; a water inlet pipe is fixed and communicated with the surface of the settling tank. According to the rectifying tower disclosed by the utility model, in the rectifying tower body, when gas rises through the floating valve, liquid on the tower plate is strongly disturbed, so that the effect of effectively preventing impurities such as sand grains from being deposited through disturbance can be achieved, and the effect of improving the rectifying efficiency can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment rectifying tower technical field especially relates to ethanol rectification negative pressure type circulating water treatment rectifying tower. BACKGROUND

[0002] Fermentation ethanol is an important bulk bio-fermentation product in China, and the national fermentation ethanol production has ranked the third in the world in 2021. As a major ethanol production province, Jiangsu Province has more than 10 ethanol production enterprises (all using cassava as raw material), and the production capacity reached 1.6 million tons / year in 2021, ranking first in the country in terms of non-grain cassava raw material ethanol production capacity. However, the ethanol production process consumes a large amount of water resources and produces a large amount of high-concentration wastewater. According to industry statistics, the water consumption per ton of ethanol and the high-concentration wastewater production reached 9-14 m3. The existing wastewater end treatment process has high operating cost and wastes a large amount of water resources, which has become a bottleneck restricting the sustainable development of ethanol enterprises. Therefore, it is imperative to develop a recycling technology for ethanol high-concentration wastewater.

[0003] The existing rectifying tower is usually S-shaped, which can easily accumulate sand on the tray surface, affect the liquid flow rate on the tray surface, and further affect the rectification efficiency. Therefore, the ethanol rectification negative pressure type circulating water treatment rectifying tower is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of the existing technology that the rectifying tower is usually S-shaped, which can easily accumulate sand on the tray surface, affect the liquid flow rate on the tray surface, and further affect the rectification efficiency, and proposes the ethanol rectification negative pressure type circulating water treatment rectifying tower.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: the ethanol rectification negative pressure type circulating water treatment rectifying tower, including the rectifying tower body, the both sides inner walls of the rectifying tower body are fixedly connected with two tray boards, the top of the tray board and close to both sides are fixedly connected with first arc baffle and second arc baffle respectively, the surface of the tray board and between first arc baffle and second arc baffle are equipped with round holes, the top of the tray board and at round hole are equipped with float valve, the surface of the rectifying tower body and close to top are fixedly connected with connecting pipe, one end of connecting pipe is fixedly connected with sediment tank, the surface of sediment tank is fixedly connected with water inlet pipe, one side wall of sediment tank and at connecting pipe are fixedly installed with filter screen disc.

[0006] Preferably, the surface of the rectifying tower body and close to the bottom are sleeved and fixedly connected with ring plate, and the bottom of the ring plate is fixedly connected with four supporting legs at equal intervals.

[0007] Preferably, the bottom and the top of the rectifying tower body are fixedly connected with liquid outlet pipe and exhaust pipe respectively.

[0008] Preferably, the bottom of the sediment tank is fixedly connected with a support plate, one end of the support plate is fixedly connected with the surface of the rectifying tower body.

[0009] Preferably, the bottom of the support plate and close to the two corners of one end are fixedly connected with support strips, and the other end of the support strips is fixedly connected with the surface of the rectifying tower body.

[0010] Preferably, the bottom of the support plate is fixedly connected with a foreign matter discharge pipe penetrating through, the top of the foreign matter discharge pipe is fixedly connected with the bottom of the sediment tank in communication, and a magnetic valve is fixedly installed on the surface of the foreign matter discharge pipe.

[0011] Compared with the prior art, the utility model has the advantages and positive effects that,

[0012] 1、in the utility model, when the gas rises through the float valve, the liquid on the tray is disturbed strongly, the effect of preventing the deposition of impurities such as sand particles through disturbance can be achieved, so that the rectification efficiency can be improved.

[0013] 2、in the utility model, water is poured into the inside of the sediment tank through the water inlet pipe, when the water in the sediment tank is located on the filter screen disc, the waste water can pass through the filter screen disc, the effect of filtering the waste water can be achieved, so that the effect of reducing the impurity particles in the waste water can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 the overall structure of the negative pressure type circulating water treatment rectifying tower for ethanol rectification is provided;

[0015] Fig. 2 the overall structure of the negative pressure type circulating water treatment rectifying tower for ethanol rectification is provided;

[0016] Fig. 3 the overall structure of the negative pressure type circulating water treatment rectifying tower for ethanol rectification is provided.

[0017] Legend: 1, rectifying tower body; 2, ring plate; 3, support leg; 4, tray; 5, first arc baffle; 6, second arc baffle; 7, round hole; 8, float valve; 9, liquid outlet pipe; 10, exhaust pipe; 11, connecting pipe; 12, sediment tank; 13, water inlet pipe; 14, filter screen disc; 15, support plate; 16, support strip; 17, foreign matter discharge pipe; 18, magnetic valve. DETAILED DESCRIPTION

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1, such as Figs. 1-3 As shown, this utility model provides a negative pressure circulating water treatment distillation column for ethanol distillation, including a distillation column body 1. Two trays 4 are fixedly connected to the inner walls of both sides of the distillation column body 1. A first arc-shaped baffle 5 and a second arc-shaped baffle 6 are fixedly connected to the top of the trays 4 and near the sides, respectively. A circular hole 7 is opened on the surface of the trays 4 between the first arc-shaped baffle 5 and the second arc-shaped baffle 6. A float valve 8 is installed on the top of the trays 4 and at the circular hole 7. The rising process of gas through the float valve 8 will generate strong disturbance on the liquid on the trays 4, and the disturbance will effectively prevent the deposition of impurities such as sand particles. A connecting pipe 11 is fixedly connected to the surface of the distillation column body 1 and near the top. One end of the connecting pipe 11 is fixedly connected to a sedimentation tank 12. A water inlet pipe 13 is fixedly connected to the surface of the sedimentation tank 12. A filter screen 14 is fixedly installed on one side wall of the sedimentation tank 12 and at the connecting pipe 11, which can filter the water entering the distillation column body 1.

[0021] Example 2, as Figs. 1-3 As shown, an annular plate 2 is fitted and fixedly connected to the surface of the distillation column body 1 near the bottom. Four support legs 3 are fixedly connected at equal intervals to the bottom of the annular plate 2, which can support the bottom of the distillation column body 1. An outlet pipe 9 and an exhaust pipe 10 are fixedly connected to the bottom and top of the distillation column body 1, respectively, which can achieve the effect of liquid outlet and exhaust. A support plate 15 is fixedly connected to the bottom of the sedimentation tank 12. One end of the support plate 15 is fixedly connected to the surface of the distillation column body 1, which can support the bottom of the sedimentation tank 12. Support bars 16 are fixedly connected to the bottom of the support plate 15 near one end at both corners. The other end of the support bars 16 is fixedly connected to the surface of the distillation column body 1, which can support the bottom of the support plate 15. A waste discharge pipe 17 is connected through and fixedly connected to the bottom of the support plate 15. The top of the waste discharge pipe 17 is fixedly connected to the bottom of the sedimentation tank 12. A solenoid valve 18 is fixedly installed on the surface of the waste discharge pipe 17, which can control the waste discharge.

[0022] Working principle: through the water inlet pipe 13 into the water in the sedimentation tank 12 inside, when the water in the sedimentation tank 12 is located in the filter screen disc 14 can make wastewater through the filter screen disc 14, can play the effect of filtering wastewater, so as to reduce the impurity particles in the wastewater, at this time the wastewater will slide from the surface of the tray 4 and flow downward, and when the gas rises through the float valve 8 will produce strong disturbance to the liquid on the tray 4, can play the effect of preventing the deposition of impurities such as sand particles through disturbance, so as to improve the rectification efficiency, and the flowing water can be discharged from the liquid outlet pipe 9.

[0023] The wiring diagram of the rectification tower body 1 and the magnetic valve 18 in the utility model belongs to the common knowledge in the field, and the working principle is a known technology, and the model is selected according to actual use, so the control mode and wiring arrangement of the rectification tower body 1 and the magnetic valve 18 are not explained in detail.

[0024] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms, and any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiments still belong to the protection scope of the utility model technical scheme.

Claims

1. A negative pressure circulating water treatment rectifying column for ethanol rectification, comprising a rectifying column body (1), characterized in that: Both sides of the rectifying tower body (1) are fixedly connected with two trays (4), the top of the tray (4) and close to both sides are fixedly connected with a first arc baffle (5) and a second arc baffle (6) respectively, the surface of the tray (4) and between the first arc baffle (5) and the second arc baffle (6) is provided with a round hole (7), the top of the tray (4) and at the round hole (7) are installed with a float valve (8), the surface of the rectifying tower body (1) and close to the top is fixedly connected with a connecting pipe (11), one end of the connecting pipe (11) is fixedly connected with a sediment tank (12), the surface of the sediment tank (12) is fixedly connected with a water inlet pipe (13), one side wall of the sediment tank (12) and at the connecting pipe (11) is fixedly installed with a filter screen (14).

2. The negative pressure circulating water treatment rectifying column for ethanol rectification according to claim 1, characterized in that: The surface of the rectifying tower body (1) and close to the bottom is sleeved and fixedly connected with a ring plate (2), the bottom of the ring plate (2) is fixedly connected with four supporting legs (3) at equal intervals.

3. The negative pressure circulating water treatment rectifying column for ethanol rectification according to claim 1, characterized in that: The bottom and the top of the rectifying tower body (1) are fixedly and communicatively connected with a liquid outlet pipe (9) and an exhaust pipe (10) respectively.

4. The negative pressure circulating water treatment rectifying column for ethanol rectification according to claim 1, characterized in that: The bottom of the sediment tank (12) is fixedly connected with a supporting plate (15), one end of the supporting plate (15) is fixedly connected with the surface of the rectifying tower body (1).

5. The negative pressure circulating water treatment rectifying column for ethanol rectification according to claim 4, characterized in that: The bottom of the supporting plate (15) and close to both corners of one end are fixedly connected with supporting strips (16), the other end of the supporting strip (16) is fixedly connected with the surface of the rectifying tower body (1).

6. The negative pressure circulating water treatment rectifying column for ethanol rectification according to claim 4, characterized in that: The bottom of the supporting plate (15) is fixedly connected with a foreign matter discharge pipe (17), the top of the foreign matter discharge pipe (17) is fixedly and communicatively connected with the bottom of the sediment tank (12), the surface of the foreign matter discharge pipe (17) is fixedly installed with a magnetic valve (18).

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