Acetate process tail gas condensate recovery treatment device

Abstract

The utility model provides an acetate process tail gas condensate recovery treatment device, and relates to the technical field of acetate tail gas treatment. The acetate process tail gas condensate recovery treatment device comprises a condensation box. In consideration of the problems that tail gas is inconvenient to purify and the external environment is easily affected, the condensation pipe conveys the tail gas, the cooling liquid rapidly cools a raw material liquid in the tail gas, and the raw material liquid flows into the condensate collecting barrel through the gas-liquid separation pipe to be recycled, so that the effect of carrying out gas-liquid separation on the tail gas of the acetate process is achieved; heat in the condensation box is rapidly discharged, cooling liquid is rapidly cooled, the condensation effect of the acetate process tail gas is guaranteed, after the tail gas is subjected to gas-liquid separation, a separated gas phase enters the purification cabin through the gas conveying pipe, the gas phase is further filtered and purified through the activated carbon plate in the purification cabin, and then the gas phase is discharged through the exhaust pipe. The tail gas is purified and prevented from being directly discharged to pollute the environment.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of acetic ester tail gas treatment, in particular to an acetic ester process tail gas condensate recovery treatment device. BACKGROUND

[0002] The acetic ester is an acetic ester product, which is widely applied in the fields of solvents, plasticizers, surfactants and polymer monomers. The renewable catalyst is applied to produce corresponding isopropyl acetate, sec-butyl acetate, isobutyl acetate and other acetic esters and other carboxylic acid esters by catalyzing direct addition esterification of low-level alkanes such as propylene, 1-butene, 2-butene and isobutene and acetic acid or other carboxylic acids. At present, the products with the most extensive market prospect are isopropyl acetate and sec-butyl acetate. The acetic ester has excellent solubility. The acetic ester can be used as a quick-drying solvent. The acetic ester is mainly used as an active solvent in the formula of coatings (paint and enamel), ink and adhesive: the acetic ester can also be used as a process solvent for pharmaceutical and organic chemical synthesis: because the acetic ester is a natural compound existing in many fruits, the acetic ester has many applications in the food industry. The acetic ester can be used as a flavoring agent and a process extractant. According to statistics, the acetic ester as an excellent solvent is gradually replacing some low-grade solvents. The development potential is large. In the distillation processing of acetic ester process products, the raw materials are subjected to catalytic fission, coking and other reactions, and the tail gas in the gas phase is directly discharged after the raw materials in the acetic ester process tail gas are condensed. The raw materials in the tail gas still exist in the gas phase. The raw materials in the tail gas are not easy to recover.

[0003] The existing acetic ester process tail gas condensate recovery treatment device directly discharges the tail gas in the gas phase after the raw materials in the acetic ester process tail gas are condensed. The tail gas in the gas phase still contains harmful substances, which is inconvenient for purifying the tail gas and is easy to affect the external environment. CONTENT OF THE UTILITY MODEL

[0004] The application provides an acetic ester process tail gas condensate recovery treatment device to solve the problem that it is inconvenient to purify the tail gas and easy to affect the external environment.

[0005] The application provides an acetic ester process tail gas condensate recovery treatment device, which comprises a condensing box, a condensing pipe is fixedly installed in the inside of the condensing box, an installation groove is formed in the top of the outer surface of the condensing box, a cooling fan is fixedly installed in the inside of the installation groove, an output pipe is through-connected to one end of the condensing pipe, a gas-liquid separation pipe is through-connected to one end of the output pipe, a gas conveying pipe is communicated with one end of the gas-liquid separation pipe, a purification cabin is fixedly arranged at the top of the gas conveying pipe, an activated carbon plate is fixedly installed in the inside of the purification cabin, and a condensate collecting barrel is movably arranged at the bottom of the gas-liquid separation pipe.

[0006] Preferably, the condensing pipe is provided with a liquid inlet pipe penetrating from one end away from the output pipe, and the liquid inlet pipe is connected with the external tail gas inlet pipe to transport the acetate process tail gas into the condensing pipe for condensation.

[0007] Preferably, the number of the mounting slots and the cooling fans is four, and the four mounting slots and the four cooling fans are distributed in a rectangular array, the mounting slots are used for mounting the cooling fans, and the cooling fans are used for rapidly cooling the cooling liquid in the condensing box.

[0008] Preferably, the top surface of the condensing box is clamped with a box cover, both sides of the top surface of the box cover are fixedly installed with handles, and the surface of the handle is sleeved with an anti-skid sleeve, and the handle is used for opening and closing the box cover.

[0009] Preferably, the top surface of the condensing box is clamped with a box cover, both sides of the top surface of the box cover are fixedly installed with handles, and the surface of the handle is sleeved with an anti-skid sleeve, and the handle is used for opening and closing the box cover.

[0010] Preferably, the bottom of the edge of the outer surface of the condensing box is provided with a liquid discharge pipe penetrating through, and the surface of the liquid discharge pipe is fixedly installed with a valve for controlling the opening and closing of the liquid discharge pipe, and the valve is used for controlling the opening and closing of the liquid discharge pipe.

[0011] Preferably, the bottom surface of the condensing box is fixedly installed with four universal wheels around, the number of the universal wheels is four and they are distributed in a rectangular array, and the inside of the universal wheel is fixedly installed with a brake pad for braking, and the brake pad is used for braking the universal wheel.

[0012] Beneficial effects:

[0013] In view of the problem that the tail gas is not convenient to purify and easily affects the external environment, the cooling liquid is injected into the condensing box, the acetate process tail gas is transported into the condensing pipe through the liquid inlet pipe, the condensing pipe transports the tail gas, the cooling liquid rapidly cools the raw material liquid in the tail gas, and the raw material liquid flows into the condensate collection barrel through the gas-liquid separation pipe for recycling, so as to achieve the effect of gas-liquid separation of the acetate process tail gas, the cooling fan is opened to rapidly discharge the heat in the condensing box, so as to rapidly cool the cooling liquid and guarantee the condensation effect of the acetate process tail gas, after the tail gas is subjected to gas-liquid separation, the separated gas phase enters the purification cabin through the gas conveying pipe, the activated carbon plate in the purification cabin further filters and purifies the gas phase, and then the gas phase is discharged through the exhaust pipe, so as to purify the tail gas to avoid directly discharging the tail gas to pollute the environment.

[0014] The above description is only a summary of the technical scheme of the embodiments of the present application, in order to more clearly understand the technical means of the embodiments of the present application, the embodiments of the present application can be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0016] Figure 1 It is an overall structure schematic diagram of the acetate ester process tail gas condensate recovery and treatment device.

[0017] Figure 2 It is a condensing pipe structure schematic diagram of the acetate ester process tail gas condensate recovery and treatment device.

[0018] Figure 3 It is a cooling fan structure schematic diagram of the acetate ester process tail gas condensate recovery and treatment device.

[0019] Figure 4 It is a purification cabin schematic diagram of the acetate ester process tail gas condensate recovery and treatment device.

[0020] Explanation of reference signs:

[0021] 1, condensing box; 2, condensing pipe; 3, liquid inlet pipe; 4, box cover; 5, handle; 6, cabin cover; 7, exhaust pipe; 8, liquid outlet pipe; 9, valve; 10, universal wheel; 11, cooling fan; 12, output pipe; 13, gas-liquid separation pipe; 14, gas conveying pipe; 15, purification cabin; 16, activated carbon plate; 17, condensate collecting barrel. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0023] Unless otherwise defined, all the technical and scientific terms used in the present application have the same meanings as those commonly understood by those skilled in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification of the present application and the description of the drawings are intended to cover the non-exclusive inclusion.

[0024] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. One of ordinary skill in the art will readily recognize from the disclosure herein a wide number of variations of the embodiments described herein that fall within the scope of the application. For example, those of ordinary skill in the art will recognize that any of the methods described herein can include more, fewer or only the significantly different steps. It will also be understood that the embodiments described herein can be combined with other embodiments in various ways without departing from the application.

[0025] The positional words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the application. For example, in the description of the application, the terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the application and simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0026] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms“mounting”,“connection”,“connection” should be understood broadly, for example, the“connection” or“connection” of mechanical structure can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection by fixing member, for example, fixed connection by screw, bolt or other fixing member; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0027] In order for those skilled in the art to better understand the application, the technical solutions in the embodiments of the application will be described clearly and completely in conjunction with the drawings.

[0028] The utility model provides a kind of Figures 1-4The acetate process tail gas condensate recovery treatment device shown includes a condensing box 1, a condensing pipe 2 is fixedly installed inside the condensing box 1, an installation groove is formed in the top surface of the condensing box 1, a cooling fan 11 is fixedly installed inside the installation groove, an output pipe 12 is throughly connected to one end of the condensing pipe 2, a gas-liquid separation pipe 13 is throughly connected to one end of the output pipe 12, a gas conveying pipe 14 is communicated to one end of the gas-liquid separation pipe 13, a purification cabin 15 is fixedly arranged on the top of the gas conveying pipe 14, an activated carbon plate 16 is fixedly installed inside the purification cabin 15, and a condensate collecting barrel 17 is movably arranged at the bottom of the gas-liquid separation pipe 13.

[0029] The cooling liquid is injected into the condensing box 1, the acetate process tail gas is conveyed into the condensing pipe 2 through the liquid inlet pipe 3, the condensing pipe 2 conveys the tail gas, the cooling liquid rapidly cools the raw material liquid in the tail gas, and the cooling liquid flows into the condensate collecting barrel 17 through the gas-liquid separation pipe 13 for recovery, so that the acetate process tail gas is gas-liquid separated, the cooling fan 11 is opened, the heat inside the condensing box 1 is rapidly discharged, the cooling liquid is rapidly cooled, and the condensation effect of the acetate process tail gas is guaranteed, the gas phase separated after the gas-liquid separation enters the purification cabin 15 through the gas conveying pipe 14, the activated carbon plate 16 inside the purification cabin 15 further filters and purifies the gas phase, and then the gas phase is discharged through the exhaust pipe 7, so that the tail gas is purified to avoid directly discharging to pollute the environment.

[0030] The condensing pipe 2 is throughly provided with the liquid inlet pipe 3 at the end away from the output pipe 12, and one end of the liquid inlet pipe 3 is communicated with an external tail gas inlet pipe.

[0031] The liquid inlet pipe 3 conveys the acetate process tail gas into the condensing pipe 2.

[0032] The installation grooves and the cooling fans 11 are all four groups, and the four groups of installation grooves and cooling fans 11 are distributed in a rectangular array.

[0033] The cooling fan 11 is arranged, the cooling fan 11 is opened, the heat inside the condensing box 1 is rapidly discharged, the cooling liquid is rapidly cooled, and the condensation effect of the acetate process tail gas is guaranteed.

[0034] The condensing box 1 is clamped with a box cover 4, handles 5 are fixedly installed on the top surface of the box cover 4, and anti-skid sleeves are sleeved on the surface of the handles 5.

[0035] The handles 5 are arranged to open and close the box cover 4.

[0036] A cabin cover 6 is movably arranged on the top surface of the purification cabin 15, and an exhaust pipe 7 is communicated to the top surface of the cabin cover 6.

[0037] The separated gas phase enters the purification cabin 15 through the gas conveying pipe 14, and the activated carbon plate 16 inside the purification cabin 15 further filters and purifies the gas phase, and then is discharged through the exhaust pipe 7.

[0038] The bottom of the outer surface edge of the condensing box 1 is provided with a drain pipe 8, and the surface of the drain pipe 8 is fixedly installed with a valve 9 for controlling the opening and closing of the drain pipe 8.

[0039] The valve 9 is opened, and the cooling liquid inside the condensing box 1 is discharged through the drain pipe 8.

[0040] The four circumferences of the bottom surface of the condensing box 1 are fixedly installed with universal wheels 10, the number of the universal wheels 10 is four groups and is distributed in a rectangular array, and the inside of the universal wheels 10 is fixedly installed with brake pads for braking.

[0041] The universal wheels 10 facilitate the movement of the condensing box 1.

[0042] Working principle: when the acetate process tail gas condensate recovery treatment device is used, cooling liquid is injected into the condensing box 1, and acetate process tail gas is conveyed into the condensing pipe 2 through the liquid inlet pipe 3, the condensing pipe 2 conveys the tail gas, the cooling liquid rapidly cools the raw material liquid in the tail gas, and flows into the condensate collection barrel 17 through the gas-liquid separation pipe 13 for recovery, achieving the effect of gas-liquid separation of the acetate process tail gas, opening the cooling fan 11, rapidly discharging the heat inside the condensing box 1, rapidly cooling the cooling liquid, and guaranteeing the condensation effect of the acetate process tail gas, after the tail gas is subjected to gas-liquid separation, the separated gas phase enters the purification cabin 15 through the gas conveying pipe 14, and the activated carbon plate 16 inside the purification cabin 15 further filters and purifies the gas phase, and then is discharged through the exhaust pipe 7, and the tail gas is purified to avoid direct discharge to pollute the environment.

[0043] The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An apparatus for recovering and treating acetic ester process tail gas condensate comprising a condensing tank (1), characterized in that: The inside of the condensing box (1) is fixedly installed with a condensing pipe (2), the top surface of the condensing box (1) is provided with a mounting groove, the inside of the mounting groove is fixedly installed with a cooling fan (11), one end of the condensing pipe (2) is throughly connected with an output pipe (12), one end of the output pipe (12) is throughly connected with a gas-liquid separation pipe (13), one end of the gas-liquid separation pipe (13) is communicated with a gas conveying pipe (14), the top of the gas conveying pipe (14) is fixedly provided with a purification cabin (15), the inside of the purification cabin (15) is fixedly installed with an activated carbon plate (16), the bottom of the gas-liquid separation pipe (13) is movably provided with a condensate collecting barrel (17).

2. The apparatus for recovering and treating the acetate process tail gas condensate according to claim 1, characterized in that: The end of the condensing pipe (2) away from the output pipe (12) is throughly provided with a liquid inlet pipe (3), one end of the liquid inlet pipe (3) is communicated with an external tail gas inlet pipe.

3. The apparatus for recovering and treating acetate process tail gas condensate according to claim 1, characterized in that: The number of the mounting groove and the cooling fan (11) is four groups, and the four groups of the mounting groove and the cooling fan (11) are distributed in a rectangular array.

4. The apparatus for recovering and treating acetate process tail gas condensate according to claim 1, characterized in that: The top surface of the condensing box (1) is clamped with a box cover (4), the top surface of the box cover (4) is fixedly installed with a handle (5) on both sides, and the surface of the handle (5) is sleeved with an anti-skid sleeve.

5. The acetate process gas liquid recovery treatment device according to claim 1, characterized in that: The top surface of the purification cabin (15) is movably provided with a cabin cover (6), and the top surface of the cabin cover (6) is communicated with an exhaust pipe (7).

6. The acetate process gas liquid recovery treatment device according to claim 1, characterized in that: The bottom of the edge of the outer surface of the condensing box (1) is throughly provided with a liquid discharge pipe (8), and the surface of the liquid discharge pipe (8) is fixedly installed with a valve (9) for controlling the opening and closing of the liquid discharge pipe (8).

7. The acetate process gas liquid recovery treatment device according to claim 1, characterized in that: The bottom surface of the condensing box (1) is fixedly installed with a universal wheel (10) around, the number of the universal wheel (10) is four groups and is distributed in a rectangular array, and the inside of the universal wheel (10) is fixedly installed with a brake pad for braking.

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