Feather and leaf separation device for backflow circulating gas of powder and particle gas conveying system

Abstract

The utility model discloses a feather leaf separation device for backflow circulation gas of a powder particle gas conveying system, which comprises a shell, a battle-axe type rotary spraying washing separator is arranged in the middle of the inner wall of a straight edge section of the shell, and a Z-shaped compartment plate frame is arranged on the middle upper portion of the inner wall of the straight edge section of the shell. A pre-distribution coalescence separator, a front settling chamber, a precise feather leaf separator, a rear settling chamber and a rear security separator are arranged on the Z-shaped compartment plate frame along the flow direction of air flow. The vane separation device has the beneficial effects that by adopting the technical scheme of the vane separation device aiming at the backflow circulating gas of the powder and particle gas conveying system, the vane separation device is more suitable for complex and changeable working conditions in multiple industries, and the rotary spraying, washing and separating effects on the backflow circulating gas containing powder and particles from the outside of the device are improved; and the new problem that the upgrading space of an old device adopting a feather and leaf separation technology is limited is solved in a targeted manner by using a smaller installation, operation and maintenance space.

Description

Technical Field

[0001] This utility model relates to the field of industrial gas-liquid-solid separation technology, specifically to a blade separation device for the reflux circulating gas of a powder and granular material gas conveying system. Background Technology

[0002] In projects and facilities across industries such as petroleum refining, coal chemical, fine chemical, food, and pharmaceuticals, there are processes involving the pneumatic conveying of powder and granular materials. Examples include PTA / PET terephthalic acid / polyester projects, PE polyethylene projects, HDPE high-density polyethylene projects, LLDPE linear low-density polyethylene projects, and PP polypropylene projects in the petroleum refining industry; pulverized coal gasification units in the coal chemical industry; titanium dioxide projects in the fine chemical industry; large-scale flour processing projects in the food industry; and powder drug projects in the pharmaceutical industry. The processes of pressurizing the reflux circulating gas in the powder and granular material pneumatic conveying system, exhaust gas emissions, and powder and granular material drying all require efficient separation of the heavy phase carried by the airflow. Most of the corresponding separation technologies and equipment utilize traditional wire mesh interception separation equipment. A few specialized separation technology companies, in collaboration with petrochemical enterprises, have achieved technological application demonstrations by upgrading traditional wire mesh separators with blade separator technology. For instance, Chinese patent ZL202120919395.0 has made technological innovation progress in the circulating nitrogen pressurization stage of powder drying in a PP polypropylene project.

[0003] The reflux circulation gas conditions of powder and granular material gas conveying systems are complex and variable. For example, the proportion of powder and granular material carried by the gas flow varies greatly, the particle size distribution of the powder and granular material varies greatly, and the charge capacity of the powder and granular material varies greatly. In particular, some old polyolefin plants that were originally built with imported process technology packages and have compact space have been converted to domestic catalysts, resulting in finer particle size of polymer powder and granular material in the product, increased proportion of powder and granular material in the gas flow, increased separation difficulty, and limited space for modification. Therefore, it is necessary to continue to upgrade and innovate the technology to adapt to the wide range of variable operating conditions in multiple industries and to specifically solve the new problems under the limited space of old plants. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a blade separation device for the reflux circulating gas of the powder and granular material gas conveying system, which can adapt to the complex and ever-changing working conditions of more industries, has higher separation efficiency, more optimized structure, is safer and more compact, and at the same time specifically solves new problems under the limited space of old devices.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a blade separation device for the reflux circulating gas of a powder and granular material gas conveying system, including a shell. A swirl jet scrubbing separator is installed in the middle of the inner wall of the straight edge section of the shell. A Z-shaped compartment frame is installed in the upper middle part of the inner wall of the straight edge section of the shell. A pre-distribution coalescing separator, a pre-settling chamber, a precision blade separator, a post-settling chamber, and a post-safety separator are arranged along the airflow direction on the Z-shaped compartment frame. The bottom of the shell is provided with auxiliary components such as a cross-arm loading arm assembly with a sealing ball. The swirl jet scrubbing separator is located in the airflow flow area at the end of the reflux circulating gas inlet pipe inside the shell and is fixed in the middle of the straight edge section of the shell cylinder.

[0008] Furthermore, the rotary jet scrubbing separator comprises a main liquid supply manifold, a front scrubbing branch pipe, a rear scrubbing branch pipe, and rotary jet valves arranged on the front and rear scrubbing branch pipes. One end of the main liquid supply manifold passes through the straight edge section of the shell and is fixed to the cylinder wall directly below the return circulating gas inlet pipe. The front scrubbing branch pipe is inserted into the middle section of the main liquid supply manifold, with its upper end aligned with the center of the return circulating gas inlet pipe inside the inlet pre-separation baffle, and is sealed and fixed to the main liquid supply manifold. The upper end of the front scrubbing branch pipe faces the return circulating gas inlet. A left-hand rotary spray valve and a right-hand rotary spray valve are respectively installed on one side of the pipe and on the side opposite to the return circulation gas inlet pipe. A downward rotary spray valve is installed vertically at the bottom of the lower short section of the front washing branch pipe that passes through the main liquid supply manifold. The rear washing branch pipe passes upward through the inlet pre-separation baffle and is sealed and fixed to the upper back side of the other end of the main liquid supply manifold. The rear washing branch pipe is also fixed to the inlet pre-separation baffle. A downward rotary spray valve is installed vertically at the lower left end of the rear washing branch pipe. More rear rotary spray valves of various directions can also be installed on the rear washing branch pipe as appropriate.

[0009] By adopting the above technical solution, the recirculating gas containing powder particles, upon first reaching the inlet pre-separation zone from the inlet pipe, is sequentially subjected to three consecutive rotary spray washes by the washing liquid provided by the front left-hand rotary spray valve, front right-hand rotary spray valve, and front downward rotary spray valve installed on the front axe washing branch pipe. This effectively removes the charge from the carrier material and achieves effective elution and separation of large-sized heavy phase carrier materials. When the airflow leaves the inner region of the inlet pre-separation zone and enters the outer region, it is subjected to a fourth consecutive rotary spray wash by the rear downward rotary spray valve installed on the rear axe washing branch pipe. This provides remedial decharging for the very small amount of "slipped" carrier material and completes effective remedial elution and separation of the "slipped" large-sized heavy phase carrier materials. The gas from the outside of the device containing powder particles... The return circulating gas of the material undergoes three consecutive intensive washing and separation processes by the front axe located within the inlet pre-separation zone and a remedial washing and separation process by the rear axe located outside the inlet pre-separation zone. The axe-type cyclone scrubbing separator ensures effective cyclone scrubbing and separation of return circulating gas containing powder and granular materials from outside the device under complex and variable operating conditions in multiple industries. Furthermore, structurally, the axe-type cyclone scrubbing separator with four consecutive cyclone scrubbing and separation functions is simply exposed outside the shell through a single liquid supply main pipe fixed to the cylinder wall directly below the return circulating gas inlet pipe. Compared to the corresponding technology in patent ZL202120919395.0, this design more effectively addresses the new problems caused by limited space in older devices, both in terms of the space occupied by process piping and maintenance.

[0010] Furthermore, the Z-shaped compartment frame is composed of a compartment top plate, a compartment vertical plate, and a compartment bottom plate connected end to end to form a Z-shaped integrated component. The top left side of the compartment vertical plate is connected to the compartment top plate at an angle of 0°-180°, and the bottom right side of the compartment vertical plate is connected to the compartment bottom plate at an angle of 0°-180°. A compartment vertical plate frame is provided in the center of the compartment vertical plate, and an internal manhole is provided on the right side of the compartment bottom plate. The arc edge of the compartment top plate, the arc edge of the compartment bottom plate, and the two side edges of the compartment vertical plate are all tightly connected to the inner wall of the straight edge section of the shell.

[0011] By adopting the above technical solution, on the one hand, the Z-shaped bulkhead frame is used to more rationally divide the internal space of the shell, thereby improving the balance between the front and rear sections of the internal space formed by the bulkhead frame. This makes the flow pattern and state of the airflow more balanced and stable as it flows through the front and rear sections of the internal space formed by the bulkhead frame. This effectively avoids the situation in similar devices where the rear section of the internal space formed by the bulkhead frame is narrower than the front section, leading to excessive airflow velocity spikes and excessive operating pressure loss, as well as significant differences in flow patterns and resulting in obvious differences in the separation effect between different areas. On the other hand, the Z-shaped bulkhead frame is tightly connected to the inner wall of the straight section of the shell through the arc edge of the top plate, the arc edge of the bottom plate, and the two sides of the vertical plate, without penetrating into the head area. This effectively avoids the situation in similar devices where the bulkhead frame and the sealing weld line inside the shell penetrate into the head area and intersect with the circumferential weld line of the head, which could lead to defects in the shell weld line, especially under special conditions of high temperature and high pressure, significantly increasing the risk of shell safety hazards.

[0012] Furthermore, the precision feather separator is disposed on the left side of the compartment vertical plate frame, and the left surface of the compartment vertical plate frame is aligned with and tightly connected to the outlet end face of the precision feather separator; the pre-settling chamber is disposed at the inlet end of the precision feather separator, and the inlet end face of the precision feather separator is aligned with and tightly connected to the outlet end face of the pre-settling chamber; the pre-distribution coalescing separator is disposed at the inlet end of the pre-settling chamber, and the inlet end face of the pre-settling chamber is aligned with and tightly connected to the outlet end face of the pre-distribution coalescing separator.

[0013] Furthermore, the pre-distribution coalescing separator consists of a housing, a front grille, a rear grille, pre-coalescing elements, and auxiliary components such as mounting through holes.

[0014] By adopting the above technical solution, the pre-distribution coalescing separator is mainly used to perform pre-coalescing separation of small and medium-sized heavy phase carriers carried by the airflow and at the same time to homogenize and rectify the airflow pattern and pre-distribute it. The number of the pre-distribution coalescing separators can be one or more sets. The configuration type is determined by the design of the precise dynamic separation technology calculation and configuration design system platform, see Chinese Patent 202120089118.1.

[0015] Furthermore, the pre-settling chamber is a hollow body formed by removing the pre-coalescing elements installed inside the pre-distribution coalescing separator. Except that the thickness of the pre-settling chamber is required to be no less than 1 / 6 times the thickness of the pre-distribution coalescing separator box, the other structural dimensions are the same as those of the pre-distribution coalescing separator box.

[0016] By adopting the above technical solution, the function of the pre-sedimentation chamber is to provide further kinetic sedimentation separation conditions for the heavy phase mass aggregates in the airflow from the pre-distribution coalescing separator that have not yet had time to settle and separate completely; the number of pre-sedimentation chambers can be one or more, and their configuration type is determined by the design completed by the precise kinetic separation technology calculation and configuration design system platform.

[0017] Furthermore, the precision feather separator consists of a feather separation box, feather separation elements, and auxiliary components such as a liquid descender tightly connected and fixed to the bottom of the feather separation box. It is used to perform precision separation of small-sized heavy phase substances carried by the airflow. The number of precision feather separators can be one or more sets. The configuration type is determined by the design completed based on the precision dynamic separation technology calculation and configuration design system platform, see Chinese patents 202120919395.0 and 202120089118.1.

[0018] By adopting the above technical solutions, the goal of hierarchical synergy of multiple separation technologies and load reduction can be achieved to cope with the effective gas-liquid-solid separation under complex and variable working conditions in multiple industries. In particular, the pre-settling chamber is combined between the pre-distribution coalescing separator and the precision blade separator. Compared with similar separation devices, this further addresses the problem of excessive heavy phase aggregates that have not yet settled and separated in the airflow from the pre-distribution coalescing separator due to positive fluctuations in airflow velocity entering the precision blade separator and causing impact.

[0019] Furthermore, the rear settling chamber is provided on the right side of the compartment vertical plate frame, and the right surface of the compartment vertical plate frame is aligned with and tightly connected to the air inlet end face of the rear settling chamber; the rear safety separator is provided at the air outlet end of the rear settling chamber, and the air outlet end face of the rear settling chamber is aligned with and tightly connected to the air inlet end face of the rear safety separator.

[0020] Furthermore, the post-settling chamber is identical in structure and size to the pre-settling chamber, and the post-safety separator is identical in structure and size to the pre-distribution coalescing separator.

[0021] By adopting the above technical solutions, the right-side combination technology of the Z-shaped compartment frame is also a multi-separation technology that achieves deeper gas-liquid-solid separation under complex and variable working conditions in multiple industries through graded synergy and load reduction. The post-separation chamber solves the problem that small heavy phases carried in the airflow from the blade separator that have not yet had time to settle and separate due to positive fluctuations in airflow velocity can enter the post-safety separator and cause impact. The post-safety separator further removes the residual heavy phases carried in the airflow to provide cleaner gas production compared to similar separation devices.

[0022] Furthermore, the sequential configuration of one or more components, including the pre-distribution coalescing separator, the pre-settling chamber, the precision blade separator, the post-settling chamber, and the post-safety separator, arranged along the airflow direction on the Z-shaped compartment frame can improve the operating effect of the separation device to varying degrees; the more complete the configuration, the better the improvement in the operating effect of the separation device.

[0023] In addition, an inlet pre-separation baffle is provided on the inner wall of the straight pipe section of the shell. This inlet pre-separation baffle is a baffle designed using a precision dynamic separation technology calculation and configuration design system platform. Its structure is described in Chinese Patent 202120919395.0. The main function of the inlet pre-separation baffle is to perform momentum reflection separation on the fast airflow containing heavy phase carriers exiting the return circulating gas inlet pipe. On the inner wall of the shell, facing the center of the inlet end face of the pre-distribution coalescing separator and the center of the outlet end face of the post-safety separator, forward flushing self-cleaners and reverse flushing self-cleaners are respectively provided. These self-cleaners are intermittently activated based on the actual operating conditions of the original return circulating gas from the outside of the device during operation to maintain long-term clean and stable operation. The forward flushing self-cleaners and reverse flushing self-cleaners have identical structural dimensions and are both made of… The device consists of a washing pipe and a rotary spray valve, as described in Chinese patent application 202120919395.0. A cross-arm loading arm assembly with a sealing ball is provided at the bottom of the housing to effectively improve the stability of the device's operation and prevent gas leakage or blockage when the device discharges liquid-solid mixtures at the bottom of the housing. This cross-arm loading arm assembly with a sealing ball consists of a sealing ball, a cross tube, a pressure regulating loading arm, a receiving device, support components, and various connecting pipes and accessories, as described in Chinese patent 202220708432.8. The sealing ball is placed at the bottom of the lower end cap of the housing, and the cross tube is connected to the bottom of the lower end cap. A blind end for maintenance, a level gauge, and a pressure regulating loading arm are provided on the cross tube. The end of the pressure regulating loading arm is connected to the receiving device. Support components are evenly distributed on the outer periphery of the bottom side of the housing. A return circulation gas inlet pipe, a loading arm level gauge matching interface pipe, a side exhaust pipe, a top exhaust pipe, a differential pressure interface pipe, a vent pipe, and an external manhole are also provided on the outer periphery of the housing.

[0024] (III) Beneficial Effects

[0025] Compared with the prior art, this utility model has the following advantages:

[0026] 1. This application provides a blade separation device for the return circulating gas of the powder and granular material pneumatic conveying system. This device is more adaptable to the complex and variable working conditions of multiple industries, improves the cyclone washing and separation effect of the return circulating gas containing powder and granular materials from the outside of the device, and solves the new problem of limited space for upgrading old devices using blade separation technology with a smaller installation and maintenance space.

[0027] 2. The Z-shaped compartment frame design adopted in the technical solution of the feather separation device for the return circulating gas of the powder and granular material gas conveying system, on the one hand, more rationally divides and improves the internal space balance of the shell, and effectively avoids the excessive pressure loss and significant differences in the separation effect of each area caused by the excessive airflow speed in the different compartments of the shell in the previous similar devices; on the other hand, it effectively avoids the risk of defects in the shell caused by the intersection of the compartment frame with the sealing weld line and the annular weld line of the shell head in the previous similar devices, especially the risk of significant expansion of shell safety hazards under special working conditions of high temperature and high pressure.

[0028] 3. This application proposes a blade separation device for the reflux circulating gas of a powder and granular material gas conveying system. A pre-settling chamber is set at the air inlet of the blade separator, and a post-settling chamber and a post-safety separator are set at the air outlet of the blade separator to cope with the effective gas-liquid-solid separation under complex and variable working conditions in multiple industries. Compared with similar separation devices, it further addresses the problem that the excessive accumulation of heavy phase aggregates that have not yet settled and separated in the airflow entering and leaving the blade separator due to positive fluctuations in airflow velocity causes them to flow into subsequent separators and cause impact, thereby providing higher gas production quality. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the blade separation device for the reflux circulating gas of the powder and granular material gas conveying system described in this utility model;

[0030] Figure 2 This is a schematic diagram of the axe-type cyclone scrubbing separator in the feather-blade separation device for the reflux circulating gas of the powder and granular material gas conveying system described in this utility model.

[0031] Figure 3 This is a front view of the Z-shaped compartment frame in the blade separation device for the return circulating gas of the powder and granular material gas conveying system described in this utility model.

[0032] Figure 4 This is a side view of the Z-shaped compartment frame in the blade separator for the reflux circulating gas of the powder and granular material gas conveying system described in this utility model;

[0033] Figure 5 This is a top view of the Z-shaped compartment plate frame in the blade separation device for the return circulating gas of the powder and granular material gas conveying system described in this utility model.

[0034] Figure 6 This is a front view of the pre-distribution coalescing separator, the pre-settling chamber, the precision blade separator, the post-settling chamber, and the post-safety separator in the blade separator for the return circulating gas of the powder and granular material gas conveying system described in this utility model.

[0035] Figure 7This is a top view of the pre-distribution coalescing separator, the pre-settling chamber, the precision blade separator, the post-settling chamber, and the post-safety separator in the blade separator for the return circulating gas of the powder and granular material gas conveying system described in this utility model.

[0036] The annotations in the attached figures are explained as follows:

[0037] 1. Shell; 2. Return circulating gas inlet pipe; 3. Inlet pre-separation baffle; 4. Axe-type swirl spray scrubber separator; 41. Liquid supply main manifold; 42. Front axe scrubber branch pipe; 421. Front axe left-hand swirl spray valve; 422. Front axe right-hand swirl spray valve; 423. Front axe downward swirl spray valve; 43. Rear axe scrubber branch pipe; 431. Rear axe downward swirl spray valve; 5. Z-shaped compartment plate frame; 51. Compartment top plate; 52. Compartment bottom plate; 53. Compartment vertical plate; 54. Compartment vertical plate frame; 55. Manhole inside the compartment bottom plate; 6. Pre-distribution 7. Coalescing separator; 8. Pre-settling chamber; 9. Precision blade separator; 10. Forward flushing self-cleaner; 11. Post-settling chamber; 12. Post-safety separator; 13. Reverse flushing self-cleaner; 14. Cross arm assembly; 15X. Arm level gauge matching interface pipe; 15A. Device support; 16A / B. Side vent pipe; 17. Top vent pipe; 18. Differential pressure interface pipe; 19. Vent pipe; 10. External manhole; T1. Pre-distribution coalescing separator thickness; T2. Post-safety separator thickness. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0039] like Figure 1 As shown, the blade separation device for the reflux circulating gas of the powder and granular material gas conveying system in this embodiment includes a shell 1. A swirl jet scrubber 4 is installed in the middle of the inner wall of the shell 1. A Z-shaped compartment frame 5 is installed in the upper middle part of the inner wall of the shell 1. A pre-distribution coalescing separator 6, a pre-settling chamber 7, a precision blade separator 8, a post-settling chamber 10, and a post-safety separator 11 are arranged on the Z-shaped compartment frame 5 along the airflow direction. Auxiliary components such as a cross-arm loading arm assembly 13 with a sealing ball are provided at the bottom of the shell 1.

[0040] like Figure 1 and Figure 2As shown, the axe-type rotary jet scrubber 4 is located in the airflow release area at the end of the return circulating gas inlet pipe 2 inside the shell 1 and is fixed in the middle of the straight side section of the shell 1. The axe-type rotary jet scrubber 4 consists of a liquid supply main manifold 41, a front axe scrubbing branch pipe 42, a rear axe scrubbing branch pipe 43, and rotary jet valves arranged on the front axe scrubbing branch pipe 42 and the rear axe scrubbing branch pipe 43. One end of the liquid supply main manifold 41 passes through the straight side section of the shell 1 and is fixed to the cylinder wall directly below the return circulating gas inlet pipe 2. The front axe scrubbing branch pipe 42 is inserted in the middle section of the liquid supply main manifold 41 and the upper end of the front axe scrubbing branch pipe 42 is located inside the inlet pre-separation baffle 3, flush with the center of the return circulating gas inlet pipe 2 and the liquid supply main manifold 41. The front axe is sealed and fixed. A left-hand rotary spray valve 421 and a right-hand rotary spray valve 422 are respectively installed on the upper end of the front axe washing branch pipe 42 facing the inlet pipe 2 and on the side facing away from the inlet pipe 2. A front axe downward rotary spray valve 423 is installed vertically at the bottom of the lower short section of the front axe washing branch pipe 42 that passes through the main supply pipe 41. The rear axe washing branch pipe 43 passes upward through the inlet pre-separation barrier 3 and is sealed and fixed to the upper back side of the other end of the main supply pipe 41. The rear axe washing branch pipe 43 is also fixed to the inlet pre-separation barrier 3. A rear axe downward rotary spray valve 431 is installed vertically at the lower left end of the rear axe washing branch pipe 43. More rear axe rotary spray valves of various directions can also be installed on the rear axe washing branch pipe 43 as appropriate.

[0041] like Figures 3-5 As shown, the Z-shaped compartment frame 5 is composed of a compartment top plate 51, a compartment vertical plate 53, and a compartment bottom plate 52 connected end to end to form a Z-shaped integrated component. The compartment top plate 51 is connected to the top left of the compartment vertical plate 53 at an angle of 0°-180°, and the compartment bottom plate 52 is connected to the bottom right of the compartment vertical plate 53 at an angle of 0°-180°. A vertical plate frame 55 is opened in the center of the compartment vertical plate 53, and an internal manhole 54 is opened on the right side of the compartment bottom plate 52. The arc edge 511 of the compartment top plate 51, the arc edge 521 of the compartment bottom plate, and the two side edges 531 of the compartment vertical plate are all tightly connected to the inner wall of the straight edge section of the shell 1.

[0042] like Figure 6 As shown, a precision feather separator 8 is installed on the left side of the compartment vertical plate frame 5, with the left surface of the compartment vertical plate frame 5 aligned with and tightly connected to the right outlet end face of the precision feather separator 8; a pre-settling chamber 7 is installed at the left air inlet end of the precision feather separator 8, with the left air inlet end face of the precision feather separator 8 aligned with and tightly connected to the right outlet end face of the pre-settling chamber 7; a pre-distribution coalescing separator 6 is installed at the left air inlet end of the pre-settling chamber 7, with the left air inlet end face of the pre-distribution coalescing separator 6 aligned with and tightly connected to the right outlet end face of the pre-distribution coalescing separator 6.

[0043] like Figure 6 and Figure 7As shown, the pre-distribution coalescing separator 6 consists of a box body, a front grille, a rear grille, pre-coalescing elements, and auxiliary components such as mounting through holes. The number of pre-distribution coalescing separators 6 can be one or more sets. The configuration type is determined by completing the design based on the precision dynamic separation technology calculation and configuration design system platform, see Chinese Patent 202120089118.1.

[0044] like Figure 6 and Figure 7 As shown, the pre-settling chamber 7 is a hollow body formed by removing the pre-coalescing elements installed inside the pre-distribution coalescing separator 6. The thickness of the pre-settling chamber is required to be no less than 1 / 6 of the thickness T1 of the pre-distribution coalescing separator housing. Figure 6 As shown, the other structural dimensions are the same as those of the pre-distributed coalescing separator 6 housing.

[0045] like Figure 6 and Figure 7 As shown, the precision blade separator 8 consists of a blade separation box, a blade separation element, and auxiliary components such as a liquid descender that are tightly connected and fixed to the bottom of the blade separation box. The number of precision blade separators 8 can be one or more sets. The configuration type is determined by completing the design based on the precision dynamic separation technology calculation and configuration design system platform, see Chinese patents 202120919395.0 and 202120089118.1.

[0046] like Figure 6 As shown, a rear settling chamber 10 is provided on the right side of the compartment vertical plate frame 5, such that the right surface of the compartment vertical plate frame 5 is aligned with and tightly connected to the left air inlet end face of the rear settling chamber 10; a rear safety separator 11 is provided on the right air outlet end of the rear settling chamber 10, such that the right air outlet end face of the rear settling chamber 10 is aligned with and tightly connected to the left air inlet end face of the rear safety separator 11.

[0047] like Figures 5-7As shown, the rear settling chamber 10 is identical in structure and size to the front settling chamber 7, and the rear safety separator 11 is identical in structure and size to the pre-distribution coalescing separator 6. The pre-distribution coalescing separator 6, the front settling chamber 7, the precision blade separator 8, the rear settling chamber 10, and the rear safety separator 11, arranged along the airflow direction on the Z-shaped bulkhead frame 5, can also be configured sequentially using one or more of these components. An inlet pre-separation baffle 3 is also provided on the inner wall of the straight pipe section of the shell 1. This inlet pre-separation baffle 3 utilizes precise dynamic separation technology... The baffle designed by the technical calculation and configuration design system platform is described in Chinese Patent 202120919395.0. On the inner wall of the housing 1 facing the center of the left air inlet end face of the pre-distribution coalescing separator 6 and the center of the right air outlet end face of the rear safety separator 11, a forward flushing self-cleaner 9 and a reverse flushing self-cleaner 12 are respectively provided. The forward flushing self-cleaner 9 and the reverse flushing self-cleaner 12 have the same structural dimensions and are both composed of a washing pipe and a rotary spray valve, as described in Chinese Patent Application 202120919395.0.

[0048] like Figure 1 As shown, a cross-arm loading arm assembly 13 with a sealing ball is provided at the bottom of the housing 1. The cross-arm loading arm assembly 13 with a sealing ball consists of a sealing ball, a cross tube, a pressure regulating loading arm, a receiving device, support components, and various connecting pipe accessories. The sealing ball is placed at the bottom of the lower end cap of the housing, and the cross tube is connected to the bottom of the lower end cap. A blind end for maintenance, a level gauge, and a pressure regulating loading arm are provided on the cross tube. The end of the pressure regulating loading arm is connected to the receiving device. Support components 14 are evenly distributed on the outer periphery of the bottom side of the housing. See Chinese Patent 202220708432.8.

[0049] like Figure 1 As shown, the outer periphery of the housing 1 is also provided with a return circulation gas inlet pipe 2, a loading arm level gauge matching interface pipe 13X, a side exhaust pipe 15A, a top exhaust pipe 15B, a differential pressure interface pipe 16A / B, a vent pipe 17, and an external manhole 18, etc.

[0050] The specific implementation process of this embodiment is as follows: Heavy phase materials such as powder and granules carried by the reflux circulating gas from the gas transmission system under complex and variable working conditions in various industries enter the space within the inlet pre-separation baffle 3 from the reflux circulating gas inlet pipe 2 located on the shell 1. First, the gas undergoes three consecutive rotary spray washes via the front left-hand rotary spray valve 421, front right-hand rotary spray valve 422, and front downward rotary spray valve 423 arranged on the front rotary spray washing branch pipe 42 of the rotary spray washing separator 4 to effectively remove the charge from the carried materials and achieve effective elution and separation of large-sized heavy phase materials. Then, when the airflow flows from the space within the inlet pre-separation baffle 3 into the space outside the baffle, it is again washed by the rear downward rotary spray valve 423 arranged on the rear rotary spray washing branch pipe 43 of the rotary spray washing separator 4. 31. A fourth continuous rotary jet scrubbing is performed to remedially remove the charge from the very few "slipped" carriers and to effectively elute and separate the large-sized heavy phase carriers that have "slipped" from the scrubbing. Next, the airflow ascends to the left side of the Z-shaped compartment frame and enters the pre-distribution coalescing separator 6 from its left inlet. This pre-coalescing separates the small-to-medium-sized heavy phase carriers carried by the airflow and simultaneously homogenizes and pre-distributes the airflow pattern. Immediately afterward, the airflow from the right outlet of the pre-distribution coalescing separator 6 enters the pre-sedimentation chamber 7 to perform dynamic sedimentation separation on the heavy phase carrier aggregates that have not yet fully settled. Then, the airflow from the right outlet of the pre-sedimentation chamber 7 enters... The airflow enters the precision blade separator 8 to precisely separate the tiny heavy phase particles carried by the airflow. Next, the airflow from the right outlet of the precision blade separator 8 enters the post-sedimentation chamber 10 to further separate the tiny heavy phase particles that, due to significant fluctuations in operating conditions, have not yet had sufficient time to settle. Subsequently, the airflow from the right outlet of the post-sedimentation chamber 10 enters the post-safety separator 11 to further remove residual heavy phase particles, providing cleaner product gas compared to similar separation devices. Finally, the ultra-clean airflow from the post-safety separator 11 merges into the right-side partition space of the Z-shaped bulkhead frame for blending and buffering before exiting the device through the side exhaust pipe 15A / top exhaust pipe 15B to supply downstream applications. User unit: Based on the actual fluctuations in the original return circulating gas from the outside of the device during operation, and in conjunction with the increase in the device's operating pressure difference, intermittently open the forward flushing self-cleaner 9 and the reverse flushing self-cleaner 12 to perform flushing and self-cleaning, so as to maintain long-term clean and stable operation; the heavy phase carried by the gas separated from the airflow is collected at the bottom of the shell 1, which pushes the sealing ball to float up and opens the discharge device, and discharges it to the waste treatment unit for centralized treatment through the loading arm connected by the cross tube; when the device is shut down, the vent pipe 17 can be opened to drain the gas and heavy phase carried by the shell and replace it with qualified gas. If necessary, protective equipment can also be worn to enter the shell through the external maintenance manhole 18 or even through the internal manhole 54 to enter the right side area of ​​the Z-shaped compartment frame 5 for inspection and maintenance.

[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A blade separator for the reflux circulating gas in a powder / granule pneumatic conveying system, characterized in that: The device includes a shell (1), a vortex-type rotary jet scrubber (4) is installed in the middle of the inner wall of the straight side section of the shell (1), a Z-shaped compartment frame (5) is installed in the upper middle of the inner wall of the straight side section of the shell (1), a pre-distribution coalescing separator (6), a pre-settling chamber (7), a precision blade separator (8), a post-settling chamber (10) and a post-safety separator (11) are arranged sequentially along the airflow direction on the Z-shaped compartment frame (5), and auxiliary components such as a cross arm assembly (13) with a sealing ball are provided at the bottom of the shell (1); the pre-distribution coalescing separator (6), the pre-settling chamber (7) and the precision blade separator (8) are fixed to each other in sequence on the left side of the Z-shaped compartment frame (5); the post-settling chamber (10) and the post-safety separator (11) are fixed to the right side of the Z-shaped compartment frame (5).

2. The vane separator for backflow circulating gas of a powder particle pneumatic system according to claim 1, characterized in that: The axle-type rotary spray washing separator (4) consists of a main liquid supply manifold (41), a front axle washing branch pipe (42), a rear axle washing branch pipe (43), and rotary spray valves arranged on the front axle washing branch pipe (42) and the rear axle washing branch pipe (43). One end of the main liquid supply manifold (41) passes through the straight side section of the shell (1) and is fixed to the cylinder wall directly below the return circulating gas inlet pipe (2). The front axle washing branch pipe (42) is inserted into the middle section of the main liquid supply manifold (41), and the upper end of the front axle washing branch pipe (42) is aligned with the center of the return circulating gas inlet pipe (2) inside the inlet pre-separation baffle (3), and is sealed and fixed to the main liquid supply manifold (41). 42) A front axe left-hand rotary spray valve (421) and a front axe right-hand rotary spray valve (422) are respectively installed on the side facing the return circulating gas inlet pipe (2) and the side facing away from the return circulating gas inlet pipe (2). A front axe downward rotary spray valve (423) is installed vertically at the bottom of the lower short section of the front axe washing branch pipe (42) passing through the main liquid supply manifold (41). The rear axe washing branch pipe (43) passes upward through the inlet pre-separation barrier (3) and is sealed and fixed on the upper back side of the other end of the main liquid supply manifold (41). The rear axe washing branch pipe (43) is also fixed to the inlet pre-separation barrier (3). A rear axe downward rotary spray valve (431) is installed vertically at the lower left end of the rear axe washing branch pipe (43).

3. The vane separator for backflow circulating gas of a powder pellet pneumatic system according to claim 1, characterized in that: The Z-shaped compartment frame (5) is composed of a compartment top plate (51), a compartment vertical plate (53) and a compartment bottom plate (52) connected end to end to form a Z-shaped integrated component. The top left of the compartment vertical plate (53) is connected to the compartment top plate (51) at an angle of 0°-180°, and the bottom right of the compartment vertical plate (53) is connected to the compartment bottom plate (52) at an angle of 0°-180°. A compartment vertical plate frame (54) is provided in the center of the compartment vertical plate (53), and an internal manhole is provided on the right side of the compartment bottom plate (52). The arc edge of the compartment top plate (51), the arc edge of the compartment bottom plate (52) and the two sides of the compartment vertical plate (53) are all tightly connected to the inner wall of the straight edge section of the shell (1).

4. The vane separator for use in a powder material gas conveying system recirculation gas return system according to claim 3, wherein: The precision feather separator (8) is arranged on the left side of the vertical plate frame (54) of the compartment, and the left side surface of the vertical plate frame (54) is aligned with and tightly connected to the air outlet end face of the precision feather separator (8); the air inlet end of the precision feather separator (8) is provided with the pre-settling chamber (7), and the air inlet end face of the precision feather separator (8) is aligned with and tightly connected to the air outlet end face of the pre-settling chamber (7); the air inlet end of the pre-settling chamber (7) is provided with the pre-distribution coalescing separator (6), and the air inlet end face of the pre-settling chamber (7) is aligned with and tightly connected to the air outlet end face of the pre-distribution coalescing separator (6).

5. The blade separator for the reflux circulating gas of a powder / granule pneumatic conveying system according to claim 4, characterized in that: The rear settling chamber (10) is provided on the right side of the compartment vertical plate frame (54), and the right side surface of the compartment vertical plate frame (54) is aligned with and tightly connected to the air inlet end face of the rear settling chamber (10); the rear safety separator (11) is provided at the air outlet end of the rear settling chamber (10), and the air outlet end face of the rear settling chamber (10) is aligned with and tightly connected to the air inlet end face of the rear safety separator (11).

6. The vane separator for backflow circulating gas of a powder particle pneumatic system according to claim 4, characterized in that: The thickness of the pre-settling chamber (7) is greater than 1 / 6 times the thickness of the pre-distributed coalescing separator (T1).

7. The vane separator for use in a powder gasification system recirculation gas according to claim 5, wherein: The thickness of the post-settling chamber (10) is greater than 1 / 6 times the thickness of the post-safety separator (T2).

8. The vane separator for use in a system for gas conveying and gas recycling of powder particles according to claim 5, characterized in that: The sequential configuration of one or more of the components of the pre-distribution coalescing separator (6), the pre-settling chamber (7), the precision blade separator (8), the post-settling chamber (10), and the post-safety separator (11) arranged along the airflow direction on the Z-shaped compartment frame (5) can improve the operating effect of the separation device to varying degrees; the more complete the configuration, the better the improvement of the operating effect of the separation device.

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