KR200484900Y1

KR200484900Y1 - Spent catalyst heating apparatus for the deoiling of the spent catalyst

Info

Publication number: KR200484900Y1
Application number: KR2020160004734U
Authority: KR
Inventors: 류수헌
Original assignee: (주) 영신금속
Priority date: 2016-08-17
Filing date: 2016-08-17
Publication date: 2017-11-06

Abstract

The present invention relates to a waste catalyst heating apparatus for removing oil from waste catalyst through pretreatment of a waste catalyst to recover valuable metals contained in waste catalyst for oil desulfurization, A heating furnace for heating the heating furnace; A waste catalyst supply unit for supplying waste catalyst into the heating furnace; A blower unit blowing air toward the waste catalyst so that the waste catalyst supplied from the waste catalyst supply unit is uniformly dispersed in the heating furnace; Wherein one end is installed in the central region and the other end is installed in the heating furnace along the diameter of the heating furnace so as to face the outer periphery, A plurality of rotation cooling units for preventing the rotation of the rotor; And a waste catalyst transferring unit disposed in a lower region of the heating furnace and transferring the waste catalyst from which oil has been removed to the outside. As a result, the waste catalyst is uniformly dispersed and the agitation of the waste catalyst is easy, so that the waste catalyst does not adhere to each other and the oil can be smoothly removed. Also, it is possible to prevent the waste catalyst from being ignited by the high temperature by cooling the waste catalyst from which the oil removal has been completed from the heating temperature, minimizing the generation of vapor, and preventing the air pollution during the movement of the waste catalyst .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a spent catalyst heating apparatus for removing waste oil from a spent catalyst,

The present invention relates to a waste catalyst heating apparatus for removing oil from waste catalysts. More particularly, the present invention relates to a waste catalyst apparatus for removing waste oil from a waste catalyst, To a waste catalyst heating apparatus for removing oil from a catalyst.

In general, spent catalysts for desulfurization used to remove sulfur (S) present in oil are catalysts in which aluminum and vanadium and molybdenum are coated on the outside, Means a catalyst having adsorbed sulfur at the end of its useful life, which is no longer able to act as a catalyst, due to the presence of sulfur and oil. Here, the mixing ratio of vanadium (V) and molybdenum (Mo) surrounding aluminum (Al) is adjusted according to the use of the purification, and nickel (Ni) or cobalt (Co) may be added if necessary. Thus, the waste catalyst contains a large amount of valuable metal such as aluminum, vanadium, molybdenum, nickel, cobalt and the like. In order to recover the valuable metal, the oil and sulfur components present in the spent catalyst should be removed first. This process corresponds to the pretreatment process in the whole process of recovering valuable metals.

The pretreatment process mainly removes the oil contained in the waste catalyst, and in this process, the sulfur component is also removed. Such waste catalyst contains impurities such as oil and sulfur in an amount of 20 wt% or more. When the scavenging process is carried out in the kiln in this state, the temperature of the scavenging catalyst rapidly increases and the damage and recovery rate of the valuable metal contained in the spent catalyst It falls significantly. That is, when the amount of oil contained in the spent catalyst is 5.0 wt% or more, ignition occurs at the inlet of the kiln during roasting, and the temperature rises to about 1,200 ° C or more in an instant. In this case, there is a high possibility of fire accident as well as safety accident.

If the oil is not removed, the transfer facility will not smoothly transfer the oil, resulting in frequent failures of the transfer equipment. If the sulfur component is not removed, the product purity of the recovered valuable metal will be lowered. In addition, due to oil, there is a risk of explosion and fire.

In order to solve this problem, most of the collected waste catalysts are deaerated in general. For example, the deasphalted oil is removed by using a waste heat as a solvent or by using a waste heat as a low temperature, or by a pyrolyzer. These methods have a structure for uniformly dispersing the spent catalyst introduced into the spent catalyst recovery device and a structure for stirring and cooling the spent catalyst are not sufficient, so that the waste catalyst introduced into the spent catalyst recovery device is clogged with each other, It is not smooth.

Korea Patent Office Registration No. 10-1626015 Korean Intellectual Property Office Registration No. 10-1555832

Accordingly, an object of the present invention is to provide a waste catalyst heating apparatus for removing oil from waste catalysts in which waste catalysts are dispersed evenly and agitation of waste catalysts is easy, so that waste catalysts do not adhere to each other and oil is removed smoothly.

In addition, it is possible to cool the spent catalyst after the oil removal is completed from the heating temperature, to prevent the spent catalyst from being ignited by the high temperature, to minimize the generation of the vapor and to prevent air pollution during the movement of the spent catalyst And a waste catalyst heating device for removing oil.

It is an object of the present invention to provide a waste catalyst heating apparatus for removing oil from a waste catalyst through pretreatment of a waste catalyst in order to recover valuable metals contained in the waste catalyst for oil desulfurization, A heating furnace for heating the catalyst; A waste catalyst supply unit for supplying waste catalyst into the heating furnace; A blower unit blowing air toward the waste catalyst so that the waste catalyst supplied from the waste catalyst supply unit is uniformly dispersed in the heating furnace; Wherein one end is installed in the central region and the other end is installed in the heating furnace along the diameter of the heating furnace so as to face the outer periphery, A plurality of rotation cooling units for preventing the rotation of the rotor; And a waste catalyst transfer part disposed in a lower region of the heating furnace and transferring waste catalyst from which oil has been removed to the outside.

Here, the rotary cooling unit is formed as a double pipe composed of an inner pipe and an outer pipe along the longitudinal direction, and the refrigerant flows into the one end of the inner pipe, passes through the other end of the inner pipe communicating with the inner pipe and the outer pipe, And a plurality of vanes installed in the outer tube such that the coolant passes through the outer tube and is discharged to the outside to circulate the coolant and is protruded perpendicularly to the longitudinal direction of the cooler, .

And a pair of auxiliary cooling units installed to pass through the heating furnace at a lower portion of the rotary cooling unit so that the spent catalyst is cooled before the spent catalyst is transferred by the waste catalyst transfer unit, A metering sensor disposed to detect the amount of waste catalyst and send a signal; And a control unit for receiving a signal from the metering sensor and controlling the driving of the spent catalyst supply unit and the blower unit.

According to the structure of the present invention described above, the waste catalyst is uniformly dispersed and the agitation of the waste catalyst is easy, so that the waste catalyst is not clogged with each other and the oil can be smoothly removed.

Also, it is possible to prevent the waste catalyst from being ignited by the high temperature by cooling the waste catalyst from which the oil removal has been completed from the heating temperature, minimizing the generation of vapor, and preventing the air pollution during the movement of the waste catalyst .

1 is a sectional view of a spent catalyst heating apparatus according to an embodiment of the present invention,
2 is a front view of a rotary cooling section and a spent catalyst transfer section arranged in a heating furnace,
3 is a detailed sectional view of the rotary cooling section.

Hereinafter, a waste catalyst heating apparatus for removing oil from a spent catalyst through pretreatment of a waste catalyst in order to recover valuable metals contained in a waste catalyst for oil desulfurization according to an embodiment of the present invention will be described in detail with reference to the drawings. The waste catalyst heating apparatus of the present invention corresponds to a device used in a step of pretreating a spent catalyst before a roasting process for removing carbon (C), sulfur (S), etc. from a spent catalyst, and a roasting process It plays a role of removing the oil present in the spent catalyst so as to be smoothly performed.

1 and 2, a spent catalyst heating apparatus 100 according to the present invention includes a heating furnace 110, a spent catalyst supply unit 120, a blower unit 130, a rotating cooling unit 140, (150).

The heating furnace 110 is a furnace which heats the waste catalyst 1 to remove oil from the waste catalyst 1 therein and has a dome shape at the upper part and a gas outlet 111 Is formed. The gas outlet 111 does not remain in the heating furnace 110 but is discharged to the outside so as not to adversely affect the heating of the spent catalyst 1 by heating the spent catalyst 1 to remove the oil . Since the waste catalyst 1 contains the vapor due to the spent catalyst 1, it is not subjected to a direct flame but is heated at a temperature of 200 to 300 ° C, which is lower than the ignition point of the oil, by about 5 to 10 wt% . The vapor is discharged to the outside through the gas outlet 111, and then the waste catalyst 1 is heated at 600 to 700 ° C. to remove most of the oil. An automatic ignition device 113 is installed in the heating furnace 110 so that the waste catalyst 1 can be heated. The discharged vapor can be connected to the kiln of the roasting process and used as an auxiliary fuel.

This process is performed in the heating furnace 110, and the spent catalyst 1 is charged into the heating furnace 110 for this purpose. The spent catalyst supply part 120 for supplying the spent catalyst 1 into the heating furnace 110 is composed of a supply hopper 121 and a supply screw 123. The feed hopper 121 is a hopper in which the spent catalyst 1 is stored, and serves to supply the stored spent catalyst 1 by a predetermined amount. The supply screw 123 is a screw that connects the lower part of the supply hopper 121 and the heating furnace 110. The spent catalyst 1 is supplied from the supply hopper 121 through a heating furnace 110). At this time, depending on the amount of the waste catalyst 1 in the heating furnace 110, the supply screw 123 supplies the waste catalyst 1 or temporarily stops the supply of the waste catalyst 1, .

In the case of the waste catalyst 1 heated in the heating furnace 110 to remove oil fractions, if the amount thereof is excessively large in the heating furnace 110, the waste catalysts 1 may not be bundled together or the oil fractions may not be removed smoothly have. Therefore, the amount of the spent catalyst 1 in the heating furnace 110 is checked and the supplied amount of the spent catalyst 1 is supplied from the spent catalyst supply unit 120 since the waste catalyst 1 should be stirred and heated in an appropriate amount in the heating furnace 110 The amount of the spent catalyst 1 to be treated must be controlled. In order to confirm the amount of the spent catalyst 1 in the heating furnace, a quantitative sensor 115, which is disposed in a region facing the waste catalyst supply unit 120 and senses the amount of the waste catalyst 1 and sends a signal, As shown in FIG. The metering sensor 115 can not accurately check the amount of the spent catalyst 1 accumulated in the heating furnace 110 when it is disposed in the vicinity of the spent catalyst supply part 120, Area. The quantitative detection sensor 115 senses the amount of the spent catalyst 1 in the heating furnace 110 and sends a signal to the control unit 160. The control unit 160 receives a signal from the quantitative detection sensor 115, 120, respectively. That is, when the metering sensor 115 detects that the amount of the spent catalyst 1 is large in the heating furnace, the control unit 160 sends a signal to the controller 160 to stop the driving of the spent catalyst supply unit 120, The control unit 160 sends a signal to the controller 160 when the quantitative sensor 115 senses that the amount of the waste catalyst 1 is low in the heating furnace 110 so that the controller 160 controls the waste catalyst supply unit 120, And the driving speed is increased.

A blower unit 130 is installed at a lower portion of the spent catalyst supply unit 120 through a heating furnace 110. The blower unit 130 serves to blow air toward the waste catalyst 1 so that the waste catalyst 1 supplied from the waste catalyst supply unit 120 is uniformly dispersed in the heating furnace 110. The waste catalyst 1 supplied from the waste catalyst supply unit 120 is accumulated only in a specific region and the oil removal of the waste catalyst 1 is not smoothly and uniformly performed. The blower unit 130 is arranged so that the air is supplied from the outer periphery of the heating furnace 110 to the central region so that the waste catalyst 1 is uniformly dispersed in the heating furnace 110, 130 in the heating furnace 110 by the pressure of the air supplied from the outside. The blower unit 130 is driven by the amount of the waste catalyst 1 existing in the heating furnace 110 through the control unit 160 receiving a signal from the quantitative sensor 115 in the same manner as the waste catalyst supply unit 120 Can be controlled. At this time, the blower unit 130 may supply air not only to the dispersion of the spent catalyst 1 but also to the air required for combustion by supplying air, and to supply air so that the vapor can be smoothly discharged in the process of sending the vapor. It also performs.

A plurality of rotation cooling units 140 are installed below the waste catalyst supply unit 120 and the blower unit 130 to prevent the waste catalyst 1 from being clumped and the waste catalyst 1 to be uniformly dispersed. The plurality of rotary cooling units 140 uniformly disperses the waste catalyst 1 and at the same time cools the waste catalyst 1 so that the heated waste catalyst 1 is not excessively heated and maintained at a constant temperature for removing oil, . The plurality of rotation cooling units 140 are formed in a shaft shape including a coolant therein. One end of the rotation cooling unit 140 is disposed in a central region of the heating furnace 110, and the other end thereof is disposed in the outer periphery along the diameter of the heating furnace 110 . The rotation cooling unit 140 prevents the waste catalyst 1 from being clumped by rotating along the axis and a plurality of rotation cooling units 140 are radially installed in the heating furnace 110. The rotary cooling unit 140 is formed as a double pipe divided into an inner pipe 141 and an outer pipe 143 along the longitudinal direction and the inner pipe 141 and the outer pipe 143 are formed so that their ends communicate with each other . The refrigerant flows into the one end of the inner pipe 141 and the refrigerant flows along the longitudinal direction of the outer pipe 143 through the other end of the inner pipe 141 in which the inner pipe 141 and the outer pipe 143 communicate, And the refrigerant is circulated. In other words, the coolant may be stored in the rotary cooling unit 140, but it is preferable that the coolant circulates continuously for rapid cooling of the spent catalyst 1. The rotation of the rotation cooling unit 140 is performed by a motor 145 provided at the end of the rotation cooling unit 140 and the motor 145 can be controlled by the control unit 160. [

The rotation cooling unit 140 includes a plurality of wings 147 protruding perpendicular to the longitudinal direction and rotated together with the rotation of the rotation cooling unit 140. The wing portion 147 is installed so that the waste catalyst 1 is more easily dispersed and is rotated together with the rotation cooling portion 140 when the rotation cooling portion 140 is rotated without a separate driving element.

The waste catalyst transfer unit 150 disposed in the lower region of the heating furnace 110 is configured to transfer the waste catalyst 1 from which the oil has been removed to the outside. The waste catalyst transferring unit 150 includes a rotary blade 151 for horizontally transferring the waste catalyst 1 from which oil has been removed and a waste catalyst 151 for discharging the waste catalyst 1, A catalyst outlet 153, and a rotation driving unit 155 for rotating the rotating blade 151. The waste catalyst 1 from which the oil discharged from the heating furnace 110 is removed through the spent catalyst transferring unit 150 is introduced into the apparatus for performing the roasting process to remove carbon and sulfur.

Here, the spent catalyst 1 must be transported in a cooled state before the waste catalyst 1 from which waste oil is removed by the spent catalyst transferring part 150 is transferred. This prevents the small amount of oil remaining in the spent catalyst 1 from being ignited by the temperature, and prevents the generation of the vapor generated by heating the spent catalyst 1, thereby preventing air pollution during the movement of the spent catalyst 1 So that it can be prevented. Therefore, the spent catalyst 1 must be moved along the feed portion of the spent catalyst 1 in a cooled state from the heated temperature. To this end, a pair of subcooling (not shown) is installed in the lower part of the rotary cooling unit 140 so as to penetrate the heating furnace 110 so that the spent catalyst 1 is cooled before the spent catalyst 1 is conveyed to the spent catalyst conveying unit 150. [ (170). The auxiliary cooling portion 170 is installed to penetrate the heating furnace 110. The refrigerant is introduced into the heating furnace 110 at both ends thereof while the opposite ends thereof are projected from the heating furnace 110, . When the auxiliary cooling part 170 is present, the waste catalyst 1 heated to remove oil from the upper part is cooled or brought into contact with or close to the auxiliary cooling part 170, The catalyst is transferred to the transfer section 150.

As described above, when the waste catalyst 1 is removed by using the spent catalyst heating apparatus 100 of the present invention, a structure for dispersing the spent catalyst 1 evenly and a structure for dispersing the spent catalyst 1 for stirring and cooling the spent catalyst 1 It is possible to solve the disadvantage that the waste catalyst 1 is clogged with each other and oil can not be removed smoothly.

1: spent catalyst 100: spent catalyst heating device
110: heating furnace 111: gas outlet
113: Automatic purifier 115: Quantitative detection sensor
120: waste catalyst supply unit 121: supply hopper
123: feed screw 130: blower section
140: rotation cooling section 141: internal tube
143: outer tube 145: motor
147: wing 150: waste catalyst transfer
151: rotating blade 153: waste catalyst outlet
155: rotation driving unit 160:
170: auxiliary cooling section

Claims

A spent catalyst heating apparatus for removing oil from spent catalyst through pretreatment of spent catalyst to recover valuable metals contained in spent catalyst for oil desulfurization,
A heating furnace for heating the waste catalyst so as to remove oil from the waste catalyst;
A waste catalyst supply unit for supplying waste catalyst into the heating furnace;
A blower unit blowing air toward the waste catalyst so that the waste catalyst supplied from the waste catalyst supply unit is uniformly dispersed in the heating furnace;
Wherein one end is installed in the central region and the other end is installed in the heating furnace along the diameter of the heating furnace so as to face the outer periphery, A plurality of rotation cooling units for preventing the rotation of the rotor;
And a waste catalyst transfer part disposed in a lower region of the heating furnace and transferring the waste catalyst from which oil has been removed to the outside.

The method according to claim 1,
Wherein the rotary cooling part is formed as a double pipe including an inner pipe and an outer pipe along a longitudinal direction, the refrigerant flows into one end of the inner pipe, passes through the other end of the inner pipe communicating with the inner pipe and the outer pipe, And the refrigerant is circulated through the refrigerant passing through the refrigerant passage in the longitudinal direction of the waste catalyst.

The method according to claim 1,
And a plurality of vanes protruding perpendicularly to the longitudinal direction of the rotary cooling unit and rotated together with the rotation of the rotary cooling unit.

The method according to claim 1,
And a pair of auxiliary cooling units installed to pass through the heating furnace at a lower portion of the rotary cooling unit so that the waste catalyst is cooled before the spent catalyst is transferred to the waste catalyst transfer unit. Catalytic heating apparatus.

The method according to claim 1,
A metering sensor disposed in a region facing the waste catalyst supply unit and sensing a quantity of spent catalyst to send a signal;
And a control unit for receiving the signal from the metering sensor and controlling the driving of the spent catalyst supply unit and the blower unit.