Propylene additive homogeneous spray forming device

Abstract

The utility model discloses a propylene assistant homogeneous spray forming device which comprises a drying tower, an atomization feeding pipe is fixedly arranged at the center of the top of the drying tower through an opening, an atomization spray head is installed on the outer wall of one end of the atomization feeding pipe and located on the inner wall of the top of the drying tower, and the atomization spray head is arranged on the outer wall of the other end of the atomization feeding pipe. A high-temperature air inlet pipe is fixedly arranged on the outer wall of one side of the drying tower through an opening, a hollow air gathering ring is fixedly arranged on the outer wall of one end of the high-temperature air inlet pipe, and one end of the high-temperature air inlet pipe communicates with the inner wall of the hollow air gathering ring. Materials are conveyed into the atomizing spray head through the atomizing feeding pipe to be atomized, high-temperature gas is conveyed into the hollow gas gathering ring through the high-temperature gas inlet pipe, vortex is generated through the flow guide gas spraying pipe installed in the hollow gas gathering ring, and the atomized materials generated by the atomizing spray head are driven to form vortex. High-temperature gas and atomized materials can be fully mixed, and the drying effect of the atomized materials can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray forming equipment, in particular to a homogeneous spray forming device for propylene additives. Background Art

[0002] Propylene is an important basic chemical raw material. With the development of the national economy, the market demand for propylene is becoming more and more vigorous, and the demand gap is getting larger and larger. Propylene mainly comes from the co-production of steam cracking to produce ethylene. However, due to problems such as raw material costs and processing capacity, it is difficult to increase the output. Therefore, the catalytic cracking process is gradually adopted in the current market. The catalytic cracking process (FCCU) by-produces about 32% of propylene, and at the same time, heavy oil can be used as raw material to produce more propylene through deep cracking.

[0003] In order to further improve the propylene yield, propylene additives for increasing propylene production are usually added to the catalytic cracking process. The preparation process of propylene additives includes raw material slurrying, spray drying and forming, roasting, washing, filtering, pneumatic drying, material collection and other processes. Among them, the spray drying process is to spray the uniformly mixed slurry into the high-temperature drying tower through the liquid spraying outlet of the atomizer, and the hot air enters the spray drying tower through the hot air distributor, and uses the high-temperature gas to dry the sprayed slurry into spherical particles. However, in the process of the existing drying device blowing out high-temperature gas through the hot air distributor, the high-temperature gas is likely to disperse the atomized material, resulting in uneven contact between the material and the high-temperature gas, and affecting the drying effect of the atomized material. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a homogeneous spray forming device for propylene additives aiming at the deficiencies of the prior art, so as to solve the problems put forward in the background art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A homogeneous spray forming device for propylene additives, comprising a drying tower. The central position at the top of the drying tower is fixedly provided with an atomizing feed pipe through an opening. One end outer wall of the atomizing feed pipe is provided with an atomizing nozzle, and the atomizing nozzle is located on the inner wall of the top of the drying tower. One side outer wall of the drying tower is fixedly provided with a high-temperature air inlet pipe through an opening. One end outer wall of the high-temperature air inlet pipe is fixedly provided with a hollow air gathering ring, and one end of the high-temperature air inlet pipe is communicated with the inner wall of the hollow air gathering ring. The inner wall of the hollow air gathering ring is provided with equidistantly distributed positioning holes, and the inner wall of the positioning holes is provided with inclined diversion air spray pipes. The atomizing nozzle is located at the central position of the inner wall of the hollow air gathering ring.

[0007] As a preferred embodiment of the homogeneous spray forming device for propylene additives, a first valve is installed on the outer wall of the atomizing feed pipe, and a first pipe joint is fixedly provided on the outer wall of the other end of the atomizing feed pipe. The material can be conveniently input into the drying tower through the atomizing feed pipe.

[0008] As a preferred embodiment of the homogeneous spray forming device for propylene additives, a second valve is installed on the outer wall of the high-temperature inlet pipe, and a second pipe joint is fixedly provided on the outer wall of the other end of the high-temperature inlet pipe. The high-temperature gas can be conveniently input into the drying tower through the high-temperature inlet pipe.

[0009] As a preferred embodiment of the homogeneous spray forming device for propylene additives, an exhaust pipe is installed through an opening on one side of the outer wall at the bottom of the drying tower. One end of the exhaust pipe opens downward, and the downward-opening end of the exhaust pipe is located inside the drying tower. The gas inside the drying tower can be conveniently discharged through the exhaust pipe.

[0010] As a preferred embodiment of the homogeneous spray forming device for propylene additives, a vertically downward discharge pipe is fixedly provided through an opening at the central position of the bottom of the drying tower, and a third valve is installed on the outer wall of the discharge pipe. The dried material can be conveniently discharged through the discharge pipe.

[0011] As a preferred embodiment of the homogeneous spray forming device for propylene additives, vertically downward support legs are fixedly provided at equal distances on one side of the outer wall at the bottom of the drying tower. The present utility model can be conveniently placed at a designated position through the support legs.

[0012] Advantages of the present utility model:

[0013] In the present utility model, the material is transported into the atomizing nozzle through the atomizing feed pipe to generate atomization, and the high-temperature inlet pipe transports the high-temperature gas into the hollow gas collecting ring. A swirling flow is generated through the diversion spray pipe installed in the hollow gas collecting ring, driving the atomized material produced by the atomizing nozzle to form a vortex, enabling the high-temperature gas to be fully mixed with the atomized material, which is beneficial to improving the drying effect of the atomized material. Description of the drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments of the present utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the overall structure of the homogeneous spray forming device for propylene additives described in the present utility model.

[0016] Figure 2It is a schematic cross-sectional structure diagram of the drying tower described in the present utility model.

[0017] Figure 3 It is a schematic cross-sectional structure diagram of the hollow gas-collecting ring described in the present utility model.

[0018] Figure 4 It is a schematic structure diagram of the atomizing feed pipe described in the present utility model.

[0019] In the figure:

[0020] 1. Drying tower; 2. Atomizing feed pipe; 3. Atomizing nozzle; 4. First valve; 5. First pipe joint; 6. High-temperature intake pipe; 7. Hollow gas-collecting ring; 8. Positioning hole; 9. Flow-guiding gas spray pipe; 10. Second valve; 11. Second pipe joint; 12. Exhaust pipe; 13. Discharge pipe; 14. Third valve; 15. Support legs. Specific embodiments

[0021] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0022] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present utility model, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the dimensions of actual products; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0023] In the accompanying drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] In the description of the present utility model, unless otherwise clearly defined and limited, if terms such as "connection" are used to indicate the connection relationship between components, such terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Embodiment 1

[0026] As Figures 1 to 4 shown, this embodiment provides a homogeneous spray forming device for propylene additives, including a drying tower 1. A central position at the top of the drying tower 1 is fixedly provided with an atomizing feed pipe 2 through an opening. An atomizing nozzle 3 is installed on the outer wall of one end of the atomizing feed pipe 2, and the atomizing nozzle 3 is located on the inner wall of the top of the drying tower 1. A high-temperature inlet pipe 6 is fixedly provided through an opening on one outer wall of the drying tower 1. A hollow gas gathering ring 7 is fixedly provided on the outer wall of one end of the high-temperature inlet pipe 6. One end of the high-temperature inlet pipe 6 is communicated with the inner wall of the hollow gas gathering ring 7. Equally spaced positioning holes 8 are formed in the inner wall of the hollow gas gathering ring 7. An inclined diversion spray pipe 9 is installed on the inner wall of the positioning hole 8. The atomizing nozzle 3 is located at the central position inside the hollow gas gathering ring 7.

[0027] Embodiment 2

[0028] Based on Embodiment 1, a first valve 4 is installed on the outer wall of the atomizing feed pipe 2 of this embodiment, and a first pipe joint 5 is fixedly provided on the outer wall of the other end of the atomizing feed pipe 2. Through the atomizing feed pipe 2, it is convenient to input materials into the drying tower 1. A second valve 10 is installed on the outer wall of the high-temperature inlet pipe 6, and a second pipe joint 11 is fixedly provided on the outer wall of the other end of the high-temperature inlet pipe 6. Through the high-temperature inlet pipe 6, it is convenient to input high-temperature gas into the drying tower 1.

[0029] Embodiment 3

[0030] Based on Embodiment 1, an exhaust pipe 12 is installed through an opening on one outer wall at the bottom of the drying tower 1 of this embodiment. One end opening of the exhaust pipe 12 faces downward, and the downward-opening end of the exhaust pipe 12 is located inside the drying tower 1. Through the exhaust pipe 12, it is convenient to discharge the gas inside the drying tower 1. A vertically downward discharge pipe 13 is fixedly provided through an opening at the central position of the bottom of the drying tower 1. A third valve 14 is installed on the outer wall of the discharge pipe 13. Through the discharge pipe 13, it is convenient to discharge the dried materials. Vertically downward and equally spaced support legs 15 are fixedly provided on one outer wall at the bottom of the drying tower 1. Through the support legs 15, it is convenient to place the present utility model at a designated position.

[0031] The working principle and usage process of the present utility model:

[0032] Refer to the appended description Figures 1-4

[0033] When the present utility model is in use, first, connect the atomizing feed pipe 2 to the storage material tank through the first pipe joint 5, then connect the high-temperature inlet pipe 6 to the high-temperature gas tank through the second pipe joint 11. Open the first valve 4, and convey the material to the atomizing nozzle 3 through the atomizing feed pipe 2 to generate atomization. At this time, convey the high-temperature gas to the hollow air-gathering ring 7 through the high-temperature inlet pipe 6, and generate a vortex through the diversion jet pipe 9 installed in the hollow air-gathering ring 7, driving the atomized matter produced by the atomizing nozzle 3 to form a vortex, enabling the high-temperature gas to be fully mixed with the atomized matter, which is beneficial to improving the drying effect of the atomized matter. After the atomized matter is dried, it naturally falls and is discharged through the discharge pipe 13 provided at the bottom of the drying tower 1, and the gas in the drying tower 1 is discharged through the exhaust pipe 12. It should be stated that the above specific implementation manners are only the preferred embodiments of the present utility model and the applied technical principles. Those skilled in the art should understand that various modifications, equivalent replacements, changes, etc. can also be made to the present utility model. However, as long as these transformations do not deviate from the spirit of the present utility model, they should be within the protection scope of the present utility model. In addition, some terms used in the description and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A propylene additive homogeneous spray forming device, characterized in that: The invention comprises a drying tower (1), wherein an atomizing feed pipe (2) is fixedly provided at the central position of the top of the drying tower (1) through an opening, an atomizing nozzle (3) is installed on the outer wall of one end of the atomizing feed pipe (2), and the atomizing nozzle (3) is located on the inner wall of the top of the drying tower (1), a high-temperature air inlet pipe (6) is fixedly provided on the outer wall of one side of the drying tower (1) through an opening, a hollow air gathering ring (7) is fixedly provided on the outer wall of one end of the high-temperature air inlet pipe (6), one end of the high-temperature air inlet pipe (6) is communicated with the inner wall of the hollow air gathering ring (7), the inner wall of the hollow air gathering ring (7) is provided with positioning holes (8) distributed at equal distances, an inclined flow guide jet pipe (9) is installed on the inner wall of the positioning hole (8), and the atomizing nozzle (3) is located at the central position of the inner wall of the hollow air gathering ring (7).

2. The propylene additive homogeneous spray forming device according to claim 1, characterized in that: A first valve (4) is installed on the outer wall of the atomizing feed pipe (2), and a first pipe joint (5) is fixedly provided on the outer wall of the other end of the atomizing feed pipe (2).

3. The propylene additive homogeneous spray forming device according to claim 1, characterized in that: A second valve (10) is installed on the outer wall of the high-temperature air intake pipe (6), and a second pipe joint (11) is fixedly provided on the outer wall of the other end of the high-temperature air intake pipe (6).

4. The propylene additive homogeneous spray forming device according to claim 1, characterized in that: An exhaust pipe (12) is installed through an opening on the outer wall of one side of the bottom of the drying tower (1), one end of the exhaust pipe (12) opens downward, and the end of the exhaust pipe (12) that opens downward is located inside the drying tower (1).

5. The propylene additive homogeneous spray forming device according to claim 1, characterized in that: A discharge pipe (13) extending vertically downward is fixedly provided through an opening at the center of the bottom of the drying tower (1), and a third valve (14) is installed on the outer wall of the discharge pipe (13).

6. The propylene additive homogeneous spray forming device according to claim 1, characterized in that: The outer wall of one side of the bottom of the drying tower (1) is fixedly provided with supporting legs (15) which are distributed vertically and equidistantly downward.

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