Raw material impurity removal device for hydrofining device

Abstract

The utility model relates to the technical field of impurity removal of hydrofining devices, in particular to a raw material impurity removal device for a hydrofining device, which comprises a cooling chamber divided into a settling zone and a flowing zone by a separating mechanism. The separating mechanism comprises a separating plate fixedly arranged on the lower portion and a filter screen arranged above the separating plate and located on the same vertical face. The discharging end of the hydrofining device is communicated with the settling zone through a feeding pipe, the flowing zone is communicated with the conveying pipeline, and cold air is introduced into the cooling chamber. According to the application, the raw material is cooled after being discharged from the discharge end of the hydrofining device, so that hydrogen chloride and ammonia gas in the material are combined under a low-temperature condition to generate ammonium chloride ammonium salt, hydrogen chloride and ammonia gas impurities in the raw material are separated out, and the hydrogen chloride and the ammonia gas are prevented from generating ammonium salt at a low temperature to block a pipeline.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogenation refining device impurity removal technical field, specifically a kind of raw material impurity removal device for hydrogenation refining device. BACKGROUND

[0002] Hydrogenation refining device is an important equipment in petroleum chemical process system, it is mainly used to hydrogenation treatment to petroleum product, to improve the quality and stability of oil product

[0003] Hydrogenation system is the core component of hydrogenation refining device, the purpose is to remove harmful impurities in raw material, so that product meets corresponding standard requirement.Raw oil generally contains certain chlorides, in raw material hydrogenation refining process, chlorides are changed into hydrogen chloride after hydrogenation.Therefore, hydrogen chloride, ammonia and other raw material impurities exist in material simultaneously, easy to combine and precipitate ammonium chloride salt crystallization in low temperature part, and block pipeline and equipment. UTILITY MODEL CONTENT

[0004] The utility model provides a raw material impurity removal device for hydrogenation refining device to solve the defects in prior art.

[0005] The utility model is realized by the following technical schemes:

[0006] A raw material impurity removal device for hydrogen hydrogenation refining device, including cooling chamber, the cooling chamber is divided into sedimentation zone and flow zone by separation mechanism, the separation mechanism includes the baffle fixedly arranged in lower part and the filter screen arranged above baffle and located on the same vertical surface;The discharge end of hydrogenation refining device is communicated with sedimentation zone by feed pipe, and flow zone is communicated with conveying pipeline, cold gas is passed in cooling chamber.

[0007] When using, hydrogenation material after hydrogenation enters the sedimentation zone in cooling chamber through the discharge end of hydrogenation refining device, wherein, cold gas is passed in the sedimentation zone in cooling chamber, so temperature is very low, so that hydrogen chloride and ammonia in material combine and generate ammonium chloride salt under low temperature condition, and filter screen can filter ammonia salt crystallization, so hydrogen chloride and ammonia content in material flowing into flow zone is reduced because hydrogen chloride and ammonia have reacted and precipitated ammonium salt in sedimentation zone, and then when material flows in conveying pipeline, ammonium salt precipitation amount is reduced even if passing low temperature section, and then pipeline will not be blocked, wherein, baffle can play certain water retaining effect, ensure that water flow is stored for a period of time in sedimentation zone, make it cold, more convenient to precipitate ammonium salt.

[0008] As preferred, two cooling chambers are provided, which are fixedly connected side by side, and the filter screen is detachably arranged; one end of a feed branch pipe connected to the settling area of the cooling chamber, and the other end of the feed branch pipe is vertically connected to a feed main pipe with two closed ends, and the feed main pipe is connected to the discharge end of the hydrogen refining device; one end of a discharge branch pipe is connected to the flow area, and the other end of the discharge branch pipe is vertically connected to a discharge main pipe, and the discharge main pipe is connected to the conveying pipeline, and valves are arranged on the feed branch pipe and the discharge branch pipe. The provision of two cooling chambers can ensure that when the filter screen on one side of the cooling chamber has too much ammonium salt, the valves on the feed branch pipe and the discharge branch pipe on the side can be closed, and the valves on the feed branch pipe and the discharge branch pipe on the other side can be opened, so that the material can flow from the other side, thereby ensuring that the filter screen on the side is removed for cleaning.

[0009] As preferred, a rotating rod is vertically arranged in the settling area, and the rotating rod is driven to rotate along its axis by a driving motor, and a plurality of stirring rods are vertically connected to the rotating rod. The rotating rod rotates under the driving of the driving motor, thereby driving the stirring rods to rotate, so as to stir the water, better ensure that the water temperature is rapidly reduced, and better realize the precipitation of ammonium salt.

[0010] As preferred, the cooling chamber is supported by a support, a driving motor is fixedly arranged on the support, a through hole is formed in the inner wall of the bottom surface of the settling area, the rotating shaft of the driving motor penetrates through the through hole and is rotatably connected to the through hole through a sealing bearing, and the rotating rod is detachably coaxially fixedly connected to the rotating shaft of the driving motor.

[0011] As preferred, a spline shaft is coaxially fixedly connected to the rotating shaft of the driving motor, and a spline groove matched with the spline shaft is formed in the bottom surface of the rotating rod along the axis thereof. The rotation of the rotating shaft of the driving motor drives the rotation of the spline shaft, and since the spline shaft is matched with the spline groove, the rotating rod is driven to rotate, and the rotating rod can be detached for cleaning when not in use.

[0012] As preferred, sliding grooves are fixedly arranged on the inner walls of the two sides of the cooling chamber, the filter screen is slidingly matched in the sliding grooves, and a sewage discharge pipe controlled by a valve is arranged at the lower part of the settling area. The sliding grooves facilitate the removal of the filter screen, and the sewage discharge pipe can discharge the sewage after cleaning.

[0013] The use of the present application can cool the raw material after it is discharged from the discharge end of the hydrogen refining device, so that the hydrogen chloride and ammonia gas in the material combine and generate ammonium chloride salt under low temperature conditions, thereby precipitating the hydrogen chloride and ammonia gas impurities in the raw material, and avoiding the blockage of the pipeline by the ammonium salt generated by the hydrogen chloride and ammonia gas under low temperature. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a structural schematic diagram of the present application;

[0016] Figure 2 is Figure 1 A schematic diagram of

[0017] shown in the figure:

[0018] 1, cooling chamber, 2, sedimentation zone, 3, flow zone, 4, filter screen, 5, partition, 6, feed branch, 7, discharge branch, 8, rotating rod, 9, lever, 10, drive motor, 11, spline shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] A kind of raw material impurity removal device for hydrofining device, as shown in Figure 1 And Figure 2 . Including cooling chamber 1, the cooling chamber 1 is separated into sedimentation zone 2 and flow zone 3 by separation mechanism, and the separation mechanism includes partition 5 fixedly arranged in lower part and filter screen 4 arranged above partition 5 and located on the same vertical surface;The discharge end of hydrofining device is communicated with sedimentation zone 2 by feed pipe, flow zone 3 is communicated with conveying pipeline, and the sedimentation zone 2 of the cooling chamber 1 is provided with cold gas pipe, and the cold gas pipe is communicated with the gas outlet end of refrigerating machine.

[0021] When the application is used, the hydrogen-refined material enters the settling area 2 in the cooling chamber 1 through the discharge end of the hydrogen-refining device, the settling area 2 in the cooling chamber 1 is provided with cold air, so the temperature is very low, and the hydrogen chloride and ammonia gas in the material combine and generate ammonium chloride salt under the low-temperature condition, and the filter screen 4 can filter the ammonium salt crystals, so that the content of hydrogen chloride and ammonia gas in the material flowing into the flowing area 3 is reduced because the hydrogen chloride and ammonia gas have reacted and the ammonium salt has been precipitated in the settling area 2, and then the amount of ammonium salt precipitated is reduced when the material flows in the conveying pipeline, and then the pipeline is not blocked, the baffle 5 can play a certain water blocking role, and the water flow is stored in the settling area 2 for a certain time to make the water flow cold and more convenient for the precipitation of ammonium salt.

[0022] The cooling chamber 1 is provided with two cooling chambers 1, the two cooling chambers 1 are fixedly connected side by side, the filter screen 4 is detachably arranged, one end of the settling area 2 of the cooling chamber 1 is communicated with the feed branch pipe 6, the other end of the feed branch pipe 6 is vertically connected and communicated on the feed main pipe which is closed at both ends, the feed main pipe is communicated with the discharge end of the hydrogen-refining device, and the flowing area 3 is communicated with one end of the discharge branch pipe 7, the other end of the discharge branch pipe 7 is vertically communicated on the discharge main pipe and the discharge main pipe is communicated with the conveying pipeline, and the feed branch pipe 6 and the discharge branch pipe 7 are both provided with valves. The two cooling chambers 1 can ensure that when the filter screen 4 on one side of the cooling chamber 1 is too full of ammonium salt, the valves on the feed branch pipe 6 and the discharge branch pipe 7 of the side can be closed, and the valves on the feed branch pipe 6 and the discharge branch pipe 7 of the other side can be opened, so that the material can flow from the other side, and then the filter screen 4 on the side can be removed for cleaning.

[0023] The cooling chamber 1 is supported by the support, the driving motor 10 is fixedly arranged on the support, the bottom inner wall of the settling area 2 is provided with a through hole, the rotating shaft of the driving motor 10 penetrates through the through hole and is rotatably connected with the through hole through a sealing bearing, the rotating rod 8 is detachably coaxially fixedly connected with the rotating shaft of the driving motor 10, and a plurality of shift rods 9 are vertically connected on the rotating rod 8. The rotating rod 8 rotates under the driving of the driving motor 10, and then drives the shift rods 9 to rotate, so as to stir the water, better ensure that the water temperature is quickly reduced, and better realize the precipitation of ammonium salt.

[0024] The rotating shaft of the driving motor 10 is coaxially fixedly connected with the spline shaft 11, and the bottom surface of the rotating rod 8 is upwardly provided with a spline groove matched with the spline shaft 11 along the axis line. The rotation of the rotating shaft of the driving motor 10 drives the rotation of the spline shaft 11, and since the spline shaft 11 is matched with the spline groove, the rotating rod 8 is driven to rotate, and at the same time, the rotating rod 8 can be detached when not in use, which is convenient for cleaning the rotating rod 8.

[0025] The both side inner walls of the cooling chamber 1 are fixedly provided with sliding grooves, the filter screen 4 is slidingly matched in the sliding grooves, and the lower part of the settling area 2 is provided with a blow-off pipe controlled by a valve. The sliding grooves are convenient for taking out the filter screen 4, and the blow-off pipe can discharge the sewage after cleaning.

[0026] The use of the present application cools the raw material after it comes out of the discharge end of the hydrogenation refining device, so that the hydrogen chloride and ammonia gas in the material combine and generate ammonium chloride salt under low temperature conditions, and then the hydrogen chloride and ammonia gas impurities in the raw material are precipitated, avoiding the generation of ammonium salt to block the pipeline under low temperature.

[0027] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A raw material impurity removal device for a hydrorefining unit, characterized in that: The device includes a cooling chamber, which is divided into a sedimentation zone and a flow zone by a partition mechanism. The partition mechanism includes a partition fixedly installed at the bottom and a filter screen installed above the partition and on the same vertical plane. The outlet of the hydrorefining unit is connected to the sedimentation zone through a feed pipe, and the flow zone is connected to a conveying pipeline. The cooling chamber is filled with cold air.

2. The raw material impurity removal device for a hydrorefining apparatus according to claim 1, characterized in that: It is equipped with two cooling chambers, which are fixedly connected side by side. The filter screen is detachable. The sedimentation zone of the cooling chamber is connected to one end of the feed branch pipe. The other end of the feed branch pipe is vertically connected to and connected to the feed main pipe which is closed at both ends. The feed main pipe is connected to the discharge end of the hydrorefining unit. The flow zone is connected to one end of the discharge branch pipe. The other end of the discharge branch pipe is vertically connected to the discharge main pipe which is connected to the conveying pipeline. Valves are installed on both the feed branch pipe and the discharge branch pipe.

3. The raw material impurity removal device for a hydrorefining apparatus according to claim 2, characterized in that: A rotating rod is vertically arranged in the sedimentation zone. The rotating rod is driven by a drive motor to rotate along its axis, and several levers are vertically connected to the rotating rod.

4. The raw material impurity removal device for a hydrorefining apparatus according to claim 3, characterized in that: The cooling chamber is supported by a bracket, on which a drive motor is fixedly mounted. A through hole is opened on the inner wall of the bottom surface of the sedimentation zone. The drive motor shaft passes through the through hole and is rotatably connected to the through hole through a sealed bearing. The rotating rod is detachably and coaxially fixedly connected to the drive motor shaft.

5. The feedstock impurity removal device for a hydrorefining apparatus according to claim 4, characterized in that: The drive motor shaft is coaxially fixedly connected to a spline shaft, and the bottom surface of the rotating rod is provided with a spline groove that mates with the spline shaft along its axis.

6. The feedstock impurity removal device for a hydrorefining apparatus according to claim 1, characterized in that: The inner walls on both sides of the cooling chamber are fixedly provided with sliding grooves, and the filter screen is slidably fitted in the sliding grooves. A drain pipe controlled by a valve is provided at the bottom of the sedimentation zone.

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