Renewable filler spray tower for petrochemical production

Abstract

The utility model relates to the technical field of spray towers, in particular to a renewable filler spray tower for petrochemical production. Comprising a tower body, the lower part of the side wall of the tower body is provided with a flue gas inlet, and the top is provided with a flue gas outlet; an absorption liquid collecting tank, an absorption filler layer I, an absorption liquid spraying tube bundle I, an absorption filler layer II, an absorption liquid spraying tube bundle II, an absorption filler layer III, an absorption liquid spraying tube bundle III and a demisting filler layer are sequentially arranged in an inner cavity of the tower body from bottom to top; an absorption liquid circulating device is arranged outside the tower body, and the liquid inlet end of the absorption liquid circulating device is fixedly communicated with the bottom of the absorption liquid collecting tank through a liquid inlet pipeline; the liquid outlet end of the absorption liquid circulating device is respectively and fixedly communicated with the absorption liquid spraying tube bundle I, the absorption liquid spraying tube bundle II and the absorption liquid spraying tube bundle III through an absorption liquid spraying main tube. The contents of fine particles and water in the flue gas treated by the flue gas treatment device are effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spraying tower technical field, concretely relates to a renewable filler spraying tower for petrochemical production. BACKGROUND

[0002] The flue gas desulfurization device is a key end treatment unit in the catalytic cracking process of a petrochemical enterprise, and bears the important responsibility of meeting the environmental protection standards for flue gas discharged by the catalytic cracking device.

[0003] The main working principle of the flue gas desulfurization device is that the flue gas first passes through the spraying system of the spraying tower to remove most of the fine particles in the flue gas, and then the flue gas preliminarily purified by the spraying tower enters the electrostatic precipitator installed inside the flue gas desulfurization tower. The device uses the strong electric field effect of the electrostatic field to charge the dust particles, acid mist, fine water droplets, aerosols, and harmful components such as PM2.5 and odor substances that may exist in the flue gas, and further collects them on the dust collection plate under the action of the electric field force, thereby ultimately meeting the requirements of the national environmental protection standards for the discharged flue gas.

[0004] The core working principle of the spraying tower in the prior art is to use the gas-liquid reverse phase contact method to wash the rising flue gas. Although this technical solution can effectively remove some pollutants in the flue gas, it has the technical problem that the fine particle content and water content of the treated flue gas are relatively high in practical application. The high fine particle content in the flue gas will increase the processing load of the electrostatic precipitator in the subsequent process, thereby not only reducing the dust removal efficiency, but also significantly increasing the power consumption of the electrostatic precipitator. In addition, the high water content in the flue gas will easily form a conductive channel between the cathode wire and the anode sleeve of the electrostatic precipitator in a high humidity environment, thereby causing frequent short circuit grounding faults. Such faults not only seriously affect the dust removal efficiency, but also may directly break the anode sleeve due to excessive current, causing equipment damage and ultimately leading to unplanned shutdown of the device. SUMMARY

[0005] The utility model provides a renewable filler spraying tower for petrochemical production, which aims to make the neutralization reaction of the spraying liquid and the flue gas more complete and add a water mist removal structure to solve the problem of high fine particle content and water content of the flue gas treated by the spraying tower in the prior art.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows:

[0007] The utility model provides a kind of renewable filler spray tower for petrochemical production, comprising: tower body, the lower part of the side wall of the tower body is provided with flue gas inlet, top is provided with flue gas outlet;The inner cavity of the tower body is sequentially provided with absorption liquid collection pool, absorption filler layer I, absorption liquid spray pipe bundle I, absorption filler layer II, absorption liquid spray pipe bundle II, absorption filler layer III, absorption liquid spray pipe bundle III and demisting filler layer from bottom to top;The outside of the tower body is provided with absorption liquid circulating device, the liquid inlet end of the absorption liquid circulating device is fixedly communicated with the bottom of the absorption liquid collection pool by liquid inlet pipeline, and the liquid outlet end of the absorption liquid circulating device is fixedly communicated with absorption liquid spray pipe bundle I, absorption liquid spray pipe bundle II and absorption liquid spray pipe bundle III respectively by absorption liquid spray main pipe;

[0008] The thickness of the absorption filler layer I is less than the thickness of the absorption filler layer II, and the thickness of the absorption filler layer II is less than the thickness of the absorption filler layer III;The absorption filler layer I, absorption filler layer II and absorption filler layer III all include a partition plate and a plurality of PP balls stacked on the partition plate, and a plurality of through holes are uniformly arranged on the partition plate;The diameter of the PP balls in the absorption filler layer I is greater than the diameter of the PP balls in the absorption filler layer II, and the diameter of the PP balls in the absorption filler layer II is greater than the diameter of the PP balls in the absorption filler layer III;In addition, the diameters of the through holes in the three partition plates are respectively less than the diameters of the PP balls stacked thereon.

[0009] Further, a group of observation windows for observing the gas-liquid reaction absorption in the inner cavity of the tower body are vertically and equidistantly arranged on the outer wall of the tower body.

[0010] Further, the thickness of the absorption filler layer I is 0.8-1.2 meters, the thickness of the absorption filler layer II is 1.0-1.5 meters, and the thickness of the absorption filler layer III is 1.2-1.8 meters.

[0011] Further, the diameter of the PP balls in the absorption filler layer I is 50-70 mm, the diameter of the PP balls in the absorption filler layer II is 30-50 mm, and the diameter of the PP balls in the absorption filler layer III is 15-30 mm.

[0012] Further, the diameter of the through holes in the partition plate of the absorption filler layer I is 30-40 mm, the diameter of the through holes in the partition plate of the absorption filler layer II is 20-30 mm, and the diameter of the through holes in the partition plate of the absorption filler layer III is 10-20 mm.

[0013] Further, corrugated reinforcing ribs with a height of 8-12 mm are welded on the back of the partition plate, and the distance between adjacent two corrugated reinforcing ribs is 150 mm.

[0014] Further, the demisting filler layer includes a frame-type mesh partition plate and demisting fillers stacked on the mesh partition plate.

[0015] Further, the demisting filler is a stainless steel wire mesh.

[0016] Further, the absorption liquid circulating device comprises an integrated water tank and a circulating water pump arranged on the top surface of the integrated water tank; a liquid supplementing opening and an overflow opening are arranged on the side wall of the integrated water tank respectively, and a liquid discharging opening is arranged on the lower part of the side wall of the integrated water tank.

[0017] Further, a float ball type liquid level meter is arranged in the integrated water tank.

[0018] The beneficial effects achieved by the utility model are as follows:

[0019] The utility model discloses a technical scheme that multiple layers filled with PP ball as absorption filler layer are arranged in the spray tower, on the one hand, the absorption liquid water mist sprayed downward in the spray tower spreads downward along the gap of the PP ball, and a treatment medium layer with high porosity and large surface area can be formed in the absorption filler layer, so that the flue gas and the absorption liquid can be more fully contacted and neutralized in the absorption filler layer, on the other hand, the flue gas can only rise along the gap of the PP ball when rising, and the flue gas is dispersed by the absorption filler layer, so that the flue gas is uniformly distributed on the cross section of the tower body, avoiding the concentration of the flue gas through a part, and making the neutralization reaction of the flue gas and the absorption liquid more sufficient, therefore, the content of fine particles in the flue gas after multiple reactions is effectively reduced, and the processing load of the electrostatic precipitator in the subsequent process is effectively reduced, and the power consumption of the electrostatic precipitator is also effectively reduced.

[0020] The utility model discloses multiple groups of absorption filler layers, and the absorption filler layer with large gap is used to absorb large-diameter particles, and the absorption filler layer with small gap is used to absorb small-diameter particles, compared with only one absorption filler layer that absorbs all diameter particles, the clogging period of the filler layer is undoubtedly prolonged.

[0021] The utility model discloses a technical scheme that the demisting filler layer filled with stainless steel wire mesh is arranged in the inner cavity of the spray tower at the flue gas outlet, which can effectively remove the moisture in the flue gas, and the flue gas after dehydration and demisting by the demisting filler layer enters the electrostatic precipitator in the next process, which can effectively solve the technical problem that the cathode wire and the anode sleeve of the electrostatic precipitator are easily short-circuited and grounded due to the high water content in the flue gas, and the stainless steel wire mesh filler is not only resistant to high-temperature acid and alkali corrosion, but also stable during use.

[0022] The renewable filler of the utility model is resistant to acid and alkali gas corrosion, can effectively treat waste gas such as flue dust, VOCs and particulate matter, and the fluid resistance of the renewable filler of the utility model is small, so the upward flow rate requirement of the flue gas is not high, and therefore the energy consumption is low. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described below are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] Figure 1 is a front view half-section structure schematic diagram of the present application;

[0025] Figure 2 is a front view structure schematic diagram of the present application;

[0026] Figure 3 is a local enlarged structure schematic diagram of the absorption liquid circulating device of the present application;

[0027] Figure 4 is a structure schematic diagram of the absorption filler layer of the present application;

[0028] Figure 5 is a structure schematic diagram of the demisting filler layer of the present application.

[0029] In the figure, 1 is a tower body; 2 is a flue gas inlet; 3 is a flue gas outlet; 4 is an absorption liquid collecting pool; 5a is an absorption filler layer I; 5b is an absorption filler layer II; 5c is an absorption filler layer III; 5-1 is a partition plate; 5-2 is a PP ball; 6a is a liquid collecting spray pipe bundle I; 6b is an absorption liquid spray pipe bundle II; 6c is an absorption liquid spray pipe bundle III; 7 is a demisting filler layer; 7-1 is a net-shaped partition plate; 7-2 is a demisting filler; 8 is an absorption liquid circulating device; 8-1 is an integrated water tank; 8-2 is a circulating water pump; 8-3 is a liquid supplementing port; 8-4 is an overflow port; 8-5 is a liquid discharging port; 8-6 is a float ball type liquid level meter; 9 is an absorption liquid spray main pipe; and 10 is an observation window. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the specification of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0031] It should be noted that if the embodiments of the utility model have the direction indication (such as up, down, left, right, front, back), the direction indication is only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), if the specific posture changes, then the direction indication also changes accordingly.

[0032] In addition, if the embodiments of the utility model have the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, the meaning of "and / or" appearing in the whole text is that it includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0033] As shown in Figures 1 to 5 The utility model provides a renewable filler spray tower for petrochemical production, including tower body 1, the lower part of the lateral wall of tower body 1 is provided with flue gas inlet 2, flue gas inlet 2 is fixedly connected with flue gas inlet pipeline. The top of tower body 1 is provided with flue gas outlet 3, and the flue gas outlet 3 is fixedly connected with the flue gas inlet of flue gas desulfurization tower through the flue gas pipeline. The inner chamber of tower body 1 is sequentially provided with absorption liquid collection pool 4, absorption filler layer I 5a, absorption liquid spray pipe bundle I 6a, absorption filler layer II 5b, absorption liquid spray pipe bundle II 6b, absorption filler layer III 5c, absorption liquid spray pipe bundle III 6c and demisting filler layer 7 from the bottom surface upwards. The outside of tower body 1 is provided with absorption liquid circulating device 8, the liquid inlet end of absorption liquid circulating device 8 is fixedly connected with the bottom of absorption liquid collection pool 4 through liquid inlet pipeline, and the liquid outlet end of the absorption liquid circulating device is fixedly connected with absorption liquid spray pipe bundle I 6a, absorption liquid spray pipe bundle II 6b and absorption liquid spray pipe bundle III 6c respectively through absorption liquid spray main pipe 9.

[0034] The thickness of the absorption filler layer I 5a is less than the thickness of the absorption filler layer II 5b, and the thickness of the absorption filler layer II 5b is less than the thickness of the absorption filler layer III 5c; the absorption filler layer I 5a, the absorption filler layer II 5b and the absorption filler layer III 5c all comprise a partition plate 5-1 and a plurality of PP balls 5-2 (i.e. polypropylene plastic balls) stacked on the partition plate 5-1, a plurality of through holes are uniformly arranged on the partition plate 5-1, and the partition plate 5-1 is horizontally arranged in the inner cavity of the tower body 1; the diameter of the PP ball 5-2 of the absorption filler layer I 5a is greater than the diameter of the PP ball 5-2 of the absorption filler layer II 5b, and the diameter of the PP ball 5-2 of the absorption filler layer II 5b is greater than the diameter of the PP ball 5-2 of the absorption filler layer III 5c; the diameters of the through holes on the three partition plates 5-1 are respectively less than the diameters of the PP balls 5-2 stacked thereon.

[0035] Specifically, the working principle of the utility model is as follows:

[0036] Firstly, the absorption liquid spraying pipe bundle I 6a, the absorption liquid spraying pipe bundle II 6b and the absorption liquid spraying pipe bundle III 6c all spray downward the absorption liquid water mist, and form a processing layer with a plurality of holes and a larger contact area in the absorption filler layer I 5a, the absorption filler layer II 5b and the absorption filler layer III 5c respectively. Then, the flue gas enters the inner cavity of the tower body 1 through the flue gas inlet 2; when entering, the flue gas has more vortexes and is more concentrated; therefore, the diameter of the PP ball 5-2 of the absorption filler layer I 5a is set to be larger, that is, the gap between the PP balls 5-2 is larger; this has two purposes: one is to avoid causing a larger resistance to the upward movement of the flue gas; the other is to disperse the flue gas, so that the flue gas is uniformly distributed on the cross section of the tower body and prevents the flue gas from passing through a part; the absorption filler layer I 5a is mainly used for absorbing and neutralizing particles with a diameter greater than 50 μm, and the larger gap also prolongs the plugging period of the filler layer. After being absorbed and neutralized by the absorption filler layer I 5a, the flue gas further rises and passes through the absorption filler layer II 5b; since the diameter of the PP ball 5-2 on the absorption filler layer II 5b is further reduced, the flue gas is further dispersed and more uniformly distributed on the cross section of the tower body, and the neutralization reaction is more complete; the absorption filler layer II 5b is used for absorbing and neutralizing particles with a diameter of 10-50 μm. Then, the flue gas further rises, and since the diameter of the PP ball 5-2 of the absorption filler layer III 5c is reduced again, the absorption filler layer III 5c can absorb and neutralize fine particles with a diameter less than 10 μm. The advantages of this design are as follows: on the one hand, different diameter particles can be dispersed and absorbed, and fine particles in the flue gas can be more completely absorbed; the gap between the PP balls 5-2 of the absorption filler layer at the bottom is larger, the plugging period of the filler layer is prolonged, and the maintenance cost in the later period is reduced; on the other hand, it is also to avoid plugging the flue gas and reduce the influence on the upward speed of the flue gas.

[0037] The experiment proves that the PM2.5 trapping efficiency of the utility model is improved by 42-58% (from 78% to 95%), the system pressure drop is reduced by 35% (from 2200 Pa to 1430 Pa), the absorption liquid circulation amount is reduced by 28% (due to the optimized distribution of the pore gradient), and the filler layer blocking period is prolonged by 3-5 times.

[0038] Finally, the purified flue gas is dehydrated and demisted by the demisting filler layer 7, and then enters the electrostatic precipitator for further treatment. The absorption liquid spray is dropped into the absorption liquid collecting tank 4 due to its own gravity, and the absorption liquid is pressurized by the absorption liquid circulating device 8, and then enters the absorption liquid spray pipe bundle I 6a, the absorption liquid spray pipe bundle II 6b and the absorption liquid spray pipe bundle III 6c for downward spraying, and the cycle is repeated.

[0039] Further, the thickness of the absorption filler layer I 5a is 0.8-1.2 meters; the thickness of the absorption filler layer II 5b is 1.0-1.5 meters; and the thickness of the absorption filler layer III 5c is 1.2-1.8 meters; the sufficient thickness design facilitates increasing the neutralization reaction time of the flue gas and the absorption liquid.

[0040] Further, the diameter of the PP ball 5-2 of the absorption filler layer I 5a is 50-70 mm; the diameter of the PP ball 5-2 of the absorption filler layer II 5b is 30-50 mm; and the diameter of the PP ball 5-2 of the absorption filler layer III 5c is 15-30 mm.

[0041] Further, the diameter of the through hole of the partition plate 5-1 is designed to be optimized in coordination with the function of the filler layer and the flow characteristics of the flue gas; the diameter of the through hole of the partition plate 5-1 of the absorption filler layer I 5a is 30-40 mm; the diameter of the through hole of the partition plate 5-1 of the absorption filler layer II 5b is 20-30 mm; and the diameter of the through hole of the partition plate 5-1 of the absorption filler layer III 5c is 10-20 mm. The diameter of the through hole is 60-70% of the minimum diameter of the filler, which can prevent the loss of large-diameter PP balls and avoid the sharp increase of the pressure drop due to the small diameter of the through hole. Through the above-mentioned gradient design of the diameter of the through hole of the partition plate 5-1, the filler layer with different particle sizes can be effectively supported, and the flue gas treatment efficiency and the operation stability can be improved through the coordinated optimization of the diameter of the through hole-air flow-pressure drop.

[0042] The diameter of the through hole of the partition plate 5-1 and the diameter of the filler are both decreased by 1:1.5-2.0 (for example, the diameter of the through hole of the bottom layer is 40 mm→10 mm of the top layer), so as to form a step-by-step compression filtering channel and improve the fine particle classification trapping efficiency.

[0043] Table 1 is a gradient configuration table of physical parameters of the three-layer absorption filler layer

[0044] Tier PP ball diameter (mm) Thickness (m) Porosity (%) Pressure drop (Pa) Absorbing filler layer I 50～70 0.8～1.2 65～75 150～300 Absorbing filler layer II 30～50 1.0～1.5 45～60 300～500 Absorbing filler layer III 15～30 1.2～1.8 30～45 500～800

[0045] Further, the partition plate 5-1 is made of 304 stainless steel punched plate (thickness 3-5mm), the opening rate is 40-50%, the back of the partition plate 5-1 is welded with corrugated reinforcing ribs with height of 8-12mm, the distance between two adjacent corrugated reinforcing ribs is 150mm, the corrugated reinforcing ribs can improve the anti-deformation ability (can withstand ≥500kg / m 2 load).

[0046] Further, a plurality of spray heads are arranged on the liquid collecting spray pipe bundle 6a, the absorption liquid spray pipe bundle 6b and the absorption liquid spray pipe bundle 6c, and the spray heads are used to spray absorption liquid to the absorption filler layer.

[0047] The demisting filler layer 7 comprises a frame type net partition plate 7-1 and demisting filler 7-2 stacked on the net partition plate 7-1, the net partition plate 7-1 is horizontally arranged in the inner cavity of the tower body and arranged above the absorption liquid spray pipe bundle 6c, the demisting filler layer 7-2 is stainless steel wire mesh filler which is well known for excellent mechanical strength and high temperature resistance. In harsh working conditions, such as high temperature, high pressure or corrosive environment, the stainless steel wire mesh filler can maintain stable performance, ensuring long-term stable operation of the demister.

[0048] The absorption liquid circulating device 8 comprises an integrated water tank 8-1 and a circulating water pump 8-2 arranged on the top surface of the integrated water tank, a liquid supplement port 8-3 and an overflow port 8-4 are respectively arranged on the side wall of the integrated water tank 8-1, the liquid supplement port 8-3 is normally closed, and the overflow port 8-4 is connected to a sewage treatment pipeline or other wastewater collection tank; the liquid supplement port 8-3 is used to supplement absorption liquid in the integrated water tank 8-1, and the overflow port 8-4 is used to avoid the technical problem of high liquid level in the integrated water tank 8-1. A liquid discharge port 8-5 is arranged at the lower part of the side wall of the integrated water tank 8-1, the liquid discharge port 8-5 is normally closed, and the liquid discharge port 8-5 is used to completely discharge the absorption liquid when the absorption liquid in the integrated water tank 8-1 is replaced. A float type liquid level gauge 8-6 is arranged in the integrated water tank 8-1, and the float type liquid level gauge 8-6 is used to observe the internal liquid level height of the integrated water tank 8-1, when the staff observes that the liquid level decreases to the designed lower limit, the operator can supplement the absorption liquid in the integrated water tank 8-1 through the liquid supplement port 8-3.

[0049] A group of observation windows 10 for observing the gas-liquid reaction absorption in the inner cavity of the tower body 1 are vertically and equidistantly arranged on the outer wall of the tower body 1.

[0050] The above only describes optional embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A renewable packing spray column for petrochemical production, characterized by, The application relates to a tower body (1), which is provided with a flue gas inlet (2) at the lower part of the side wall and a flue gas outlet (3) at the top; the inner cavity of the tower body (1) is sequentially provided with an absorption liquid collecting pool (4), an absorption filler layer I (5a), an absorption liquid spraying pipe bundle I (6a), an absorption filler layer II (5b), an absorption liquid spraying pipe bundle II (6b), an absorption filler layer III (5c), an absorption liquid spraying pipe bundle III (6c) and a demisting filler layer (7) from the bottom to the top; the outer part of the tower body (1) is provided with an absorption liquid circulating device (8), the liquid inlet end of the absorption liquid circulating device (8) is fixedly communicated with the bottom of the absorption liquid collecting pool (4) through a liquid inlet pipeline, and the liquid outlet end of the absorption liquid circulating device (8) is fixedly communicated with the absorption liquid spraying pipe bundle I (6a), the absorption liquid spraying pipe bundle II (6b) and the absorption liquid spraying pipe bundle III (6c) through absorption liquid spraying main pipes (9) respectively. The thickness of the absorption filler layer I (5a) is smaller than that of the absorption filler layer II (5b), and the thickness of the absorption filler layer II (5b) is smaller than that of the absorption filler layer III (5c); the absorption filler layer I (5a), the absorption filler layer II (5b) and the absorption filler layer III (5c) all comprise a partition plate (5-1) and a plurality of PP balls (5-2) stacked on the partition plate (5-1); a plurality of through holes are uniformly arranged on the partition plate (5-1); the diameter of the PP ball (5-2) of the absorption filler layer I (5a) is larger than that of the PP ball (5-2) of the absorption filler layer II (5b), and the diameter of the PP ball (5-2) of the absorption filler layer II (5b) is larger than that of the PP ball (5-2) of the absorption filler layer III (5c); in addition, the diameters of the through holes on the three partition plates (5-1) are all smaller than the diameters of the PP balls (5-2) stacked thereon. A group of observation windows (10) for observing the gas-liquid reaction absorption in the inner cavity of the tower body (1) are vertically and equidistantly arranged on the outer wall of the tower body (1).

2. A renewable filler spray tower for petrochemical production according to claim 1, characterized in that: The thickness of the absorption filler layer I (5a) is 0.8-1.2 meters; the thickness of the absorption filler layer II (5b) is 1.0-1.5 meters; and the thickness of the absorption filler layer III (5c) is 1.2-1.8 meters.

3. A renewable filler spray tower for petrochemical production according to claim 1, characterized in that: The diameter of the PP ball (5-2) of the absorption filler layer I (5a) is 50-70 millimeters; the diameter of the PP ball (5-2) of the absorption filler layer II (5b) is 30-50 millimeters; and the diameter of the PP ball (5-2) of the absorption filler layer III (5c) is 15-30 millimeters.

4. A renewable filler spray tower for petrochemical production according to claim 1, characterized in that: The diameter of the through hole on the partition plate (5-1) of the absorption filler layer I (5a) is 30-40 millimeters; the diameter of the through hole on the partition plate (5-1) of the absorption filler layer II (5b) is 20-30 millimeters; and the diameter of the through hole on the partition plate (5-1) of the absorption filler layer III (5c) is 10-20 millimeters.

5. A renewable filler spray tower for petrochemical production according to claim 1, characterized in that: The back surface of the partition plate (5-1) is welded with corrugated reinforcing ribs with a height of 8-12 mm, and the distance between two adjacent corrugated reinforcing ribs is 150 mm.

6. A renewable filler spray tower for petrochemical production according to claim 1 or 5, characterized in that: ​ 7. A renewable filler spray tower for petrochemical production according to claim 1, characterized in that: The demisting filler layer (7) comprises a frame net partition (7-1) and demisting filler (7-2) stacked on the net partition (7-1).

8. A renewable filler spray tower for petrochemical production according to claim 7, characterized in that: The demisting filler (7-2) is a stainless steel wire mesh.

9. A renewable filler spray tower for petrochemical production according to claim 1, characterized in that: The absorption liquid circulating device (8) comprises an integrated water tank (8-1) and a circulating water pump (8-2) arranged on the top surface of the integrated water tank (8-1); a liquid supplementing port (8-3) and an overflow port (8-4) are respectively arranged on the side wall of the integrated water tank (8-1), and a liquid discharging port (8-5) is arranged on the lower part of the side wall of the integrated water tank (8-1).

10. A renewable filler spray tower for petrochemical production according to claim 9, characterized in that: A float type liquid level meter (8-6) is arranged in the integrated water tank (8-1).

Images