Ash separation chilling chamber of coal water slurry gasification furnace

Abstract

The utility model discloses an ash separation chilling chamber of a coal water slurry gasification furnace, which comprises a chilling chamber, an upper end socket and a lower end socket are respectively arranged at the upper end and the lower end of the chilling chamber, and an air inlet and a slag outlet are respectively arranged at the upper port and the lower port of the chilling chamber. The inner cylinder is located in the middle of the inner cavity of the chilling chamber, the middle of the inner cylinder is fixed to the interior of the chilling chamber through a connecting rib plate, and an annular gap exists between the inner cylinder and the inner wall of the chilling chamber. The utility model relates to the technical field of synthetic ammonia production equipment, in particular to an ash separation chilling chamber of a coal water slurry gasification furnace, which is optimized and improved in structure and material, and the integral strength and the washing resistance of a water outlet section of the chilling chamber can be improved by improving a water inlet and distribution structure and a water outlet rotational flow structure, so that the service life of the chilling chamber is prolonged; the outer diameter of the chilling chamber is increased to increase the ratio of the sectional area of the inner barrel to the sectional area of the annular space of the shell, structures such as a bubble breaker and a chilling water inlet are optimized, the annular space material flow speed is reduced, the gas, water and ash separation effect is enhanced, and the anti-blocking capacity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to synthetic ammonia production equipment technical field, concretely is a coal water slurry gasification furnace ash separation quenching chamber. BACKGROUND

[0002] The quenching chamber is an important auxiliary equipment of the coal water slurry gasification synthetic ammonia gasification furnace, and is used for realizing the separation of process gas and coal ash, and the cooling of process gas and coal ash.

[0003] At present, the gasification production load is gradually improved, and the operation parameters of the gasification furnace are continuously adjusted to adapt to different coal kinds, the quenching chamber has problems such as poor water-ash separation effect, difficult ash discharge and the like, and the operation cycle of the quenching chamber cannot reach the design value, cannot match the operation cycle of the gasification furnace, and seriously affects the production, and the disassembled quenching chamber is checked to have problems such as serious coal ash blockage, deformation, damage, inner part deformation and damage and the like in different degrees. The corresponding gasification furnace needs to be stopped every time the quenching chamber is maintained, and the electric fee loss caused by the shutdown and the high quenching chamber disassembly and maintenance cost are high. Therefore, it is urgent to prolong the use cycle and service life of the quenching chamber to adapt to the current production demand and ensure the long-period stable operation of the synthetic ammonia production line. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the defects in the prior art, the utility model provides a coal water slurry gasification furnace ash separation quenching chamber, and solves the problems of serious coal ash blockage, deformation and damage in the prior quenching chamber.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a coal water slurry gasification furnace ash separation quenching chamber, comprising a quenching chamber, the upper and lower ends of the quenching chamber are respectively provided with upper and lower heads, and the upper and lower ports of the quenching chamber are respectively provided with gas inlets and ash outlets.

[0008] The inner cylinder is located in the middle part of the inner cavity of the quenching chamber, the middle part of the inner cylinder is fixed with the inside of the quenching chamber through a connecting rib plate, and an annular gap exists between the inner cylinder and the inner wall of the quenching chamber, and a plurality of bubble breakers are arranged in the annular gap.

[0009] The top of the upper head is provided with a flange, the inner side of the flange is sealed and connected with the outer cylinder sleeve through a second partition plate, the inner side of the outer cylinder sleeve is provided with an inner cylinder sleeve, and the top of the inner cylinder sleeve and the outer cylinder sleeve is sealed and connected through a jacket head.

[0010] The inner cylinder extends to the gap between the inner cylinder sleeve and the outer cylinder sleeve, a plurality of groups of rotational flow sheets are arranged between the inner cylinder and the inner cylinder sleeve, and a plurality of groups of positioning claws are arranged between the inner cylinder and the outer cylinder sleeve.

[0011] The side wall of the quenching chamber is respectively provided with a concentrated liquid level meter port, a water inlet, an air outlet, a dosing port, a water outlet and an observation port.

[0012] The outer side of the quenching chamber is further provided with an ear support.

[0013] As a further optimization, a first partition is further arranged between the inner cylinder and the inner wall of the quenching chamber, and the water outlet of the water inlet passes through the first partition.

[0014] As a further optimization, the water inlet is provided with four groups.

[0015] (Three) beneficial effects

[0016] The utility model provides a kind of water coal slurry gasification furnace ash separation quenching chamber. With following beneficial effects:

[0017] The water coal slurry gasification furnace ash separation quenching chamber is optimized and reformed by structure and material, and the reform of water inlet distribution and water outlet rotational flow structure can increase the overall strength and erosion resistance of quenching chamber water outlet section, prolong the service life of quenching chamber;Increase the outer diameter of quenching chamber to expand the ratio of inner cylinder cross-sectional area and shell annular gap cross-sectional area, and optimize the structure of bubble breaker, quenching water inlet and the like, reduce annular gap material flow rate, enhance gas, water, ash separation effect, improve the ability of anti-blocking. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is structure schematic view of the utility model;

[0019] Fig. 2 It is structure plan view of the utility model;

[0020] Fig. 3 It is structure enlarged view of the utility model A.

[0021] In the drawing: 1, quenching chamber;2, lower head;3, ear support;4, concentrated liquid level meter port;5, connecting rib plate;6, water inlet;7, inner cylinder;8, air outlet;9, first partition;10, slag outlet;11, gas inlet;12, upper head;13, flange;14, second partition;15, outer cylinder sleeve;16, positioning claw;17, jacket head;18, inner cylinder sleeve;19, rotational flow sheet;20, bubble breaker;21, dosing port;22, water outlet;23, observation port. DETAILED DESCRIPTION

[0022] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0023] As Figs. 1-3 The utility model provides a technical scheme: a water coal slurry gasification furnace ash separation quenching chamber, including quenching chamber 1, the upper and lower ends of this quenching chamber 1 are provided with upper head 12 and lower head 2 respectively, and the upper and lower ports of quenching chamber 1 are provided with gas inlet 11 and slag outlet 10 respectively.

[0024] Inner cylinder 7 is located in the middle part of the inner cavity of quenching chamber 1, the middle part of inner cylinder 7 is fixed with the inside of quenching chamber 1 through connecting rib plate 5, and there is an annular gap between inner cylinder 7 and the inner wall of quenching chamber 1, a plurality of bubble breakers 20 (also called defoamers, which are prior art and can be directly purchased) are arranged in the annular gap, the cross-sectional area of the annular gap is increased, and the number and layers of bubble breakers 20 are increased synchronously, which effectively prevents water bubbles from being generated and reduces the entrainment of coal ash and water by upward flowing gas.

[0025] The top of upper head 12 is provided with flange 13, the inner side of flange 13 is sealed and connected with outer cylinder sleeve 15 through second partition plate 14, the inner side of outer cylinder sleeve 15 is provided with inner cylinder sleeve 18, and inner cylinder sleeve 18 is sealed and connected with the top of outer cylinder sleeve 15 through jacket head 17.

[0026] There is a gap between inner cylinder sleeve 18 and outer cylinder sleeve 15, the top of inner cylinder 7 extends into the gap, a plurality of cyclone plates 19 are arranged between inner cylinder 7 and inner cylinder sleeve 18, and a plurality of positioning claws 16 are arranged between inner cylinder 7 and outer cylinder sleeve 15.

[0027] The original material of jacket head 17 and inner cylinder sleeve 18 is S32168 stainless steel, the present quenching chamber selects INCOLOY825 material with better wear resistance, and cyclone plates 19 are additionally arranged on the inner side of component inner cylinder sleeve 18, so that the distribution of supplementary water entering quenching chamber 1 is more uniform, the flow rate is increased through cyclone, better cooling and washing effects are achieved, and then the problem of blockage is avoided.

[0028] The side wall of quenching chamber 1 is respectively provided with concentrated liquid level meter port 4 (for detecting water level), water inlet 6, gas outlet 8, dosing port 21 (for adding scale inhibitor), water outlet 22 (backup, when slag outlet 10 is blocked or fails, waste water gas is discharged through water outlet 22), and observation port 23, and the size of observation port 23 is increased synchronously after the outer diameter size of quenching chamber 1 is increased, which is more conducive to observing the internal condition of the equipment, and the ash and slag lump in the quenching chamber is more convenient to clean.

[0029] The first partition plate 9 is arranged between the inner cylinder 7 and the inner wall of the quenching chamber 1, and the water outlet of the water inlet 6 penetrates through the first partition plate 9. The water inlet 6 is provided with four groups, and the original structure has only one water inlet 6. The present quenching chamber is provided with four symmetrical water inlets 6, so that the distribution of the supplementary water after entering the jacket head 17 is more uniform, and the cooling effect is better.

[0030] The outer side of the quenching chamber 1 is further provided with an ear type support 3.

[0031] Meanwhile, the contents not described in detail in the present specification all belong to the prior art known by the person skilled in the art.

[0032] In use, the product (including useful gas, coal cinder, ash, etc.) after the reaction of the coal water slurry and oxygen enters the inside of the inner cylinder 7 from the gas inlet 11, and the supplementary water enters the inside of the inner cylinder 7 after passing through the jacket head 17 from the water inlet 6 (N1(1-4)) pipe, and fully contacts with the gas, coal cinder, ash, etc., so as to reduce the temperature of the gas, coal cinder, ash, etc., and separate part of the coal cinder and ash from the gas. The mixture preliminarily separates the coal cinder and part of the water at the outlet of the inner cylinder 7, and reaches the bottom of the quenching chamber, and the gas, ash, and part of the water flow to the annular gap between the inner cylinder 7 and the inner wall of the quenching chamber 1, and are separated by gravity settling in the annular gap. Most of the ash and water flow to the bottom of the quenching chamber 1, and the gas, a small amount of ash, and water flow upward together and flow out of the quenching chamber 1 from the gas outlet 8 to enter the next process. The coal cinder, ash, and water at the bottom of the quenching chamber 1 are periodically discharged from the cinder outlet 10.

[0033] In summary, the coal water slurry gasification furnace ash separation quenching chamber is optimized and transformed in terms of structure and material. The transformation of the water inlet and water distribution and the water outlet cyclone structure can increase the overall strength and erosion resistance of the water outlet section of the quenching chamber, and prolong the service life of the quenching chamber. The outer diameter of the quenching chamber is increased to expand the ratio of the cross-sectional area of the inner cylinder to the cross-sectional area of the shell annulus, and the structure of the bubble breaker, the quenching water inlet, etc. is optimized to reduce the material flow rate in the annulus and enhance the separation effect of the gas, water, and ash.

[0034] It should be noted that the electrical components appearing in this document are all connected to the main controller and 220V or 380V mains electricity from the outside world, and the main controller can be a computer or other conventional known device controlled by the control principle, internal structure and control switch mode, etc. are conventional means of the prior art, here directly quoted, no need to repeat, in this document, such as first and second, and other relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A quench chamber for separating ash from coal water slurry gasifier, characterized in that: The application relates to a quenching chamber (1) which is provided with an upper head (12) and a lower head (2) at the upper and lower ends respectively, and is provided with an air inlet (11) and a slag outlet (10) at the upper and lower ports respectively; An inner cylinder (7) is arranged in the middle part of the inner cavity of the quenching chamber (1), the middle part of the inner cylinder (7) is fixed with the inner part of the quenching chamber (1) through a connecting rib plate (5), and an annular gap exists between the inner cylinder (7) and the inner wall of the quenching chamber (1), a plurality of bubble breakers (20) are arranged in the annular gap; A flange (13) is arranged at the top of the upper head (12), the inner side of the flange (13) is sealedly connected with an outer cylinder sleeve (15) through a second partition plate (14), the inner side of the outer cylinder sleeve (15) is provided with an inner cylinder sleeve (18), and the top of the outer cylinder sleeve (15) is sealedly connected with the inner cylinder sleeve (18) through a jacket head (17); A gap exists between the inner cylinder sleeve (18) and the outer cylinder sleeve (15), the top of the inner cylinder (7) extends into the gap, a plurality of rotational flow sheets (19) are arranged between the inner cylinder (7) and the inner cylinder sleeve (18), and a plurality of positioning claws (16) are arranged between the inner cylinder (7) and the outer cylinder sleeve (15); The side wall of the quenching chamber (1) is provided with a concentrated liquid level meter port (4), a water inlet (6), an air outlet (8), a dosing port (21), a water outlet (22) and an observation port (23) respectively; An ear type support (3) is further arranged outside the quenching chamber (1).

2. The quench chamber for separating the ash and slag of the coal water slurry gasifier according to claim 1, wherein: A first partition plate (9) is further arranged between the inner cylinder (7) and the inner wall of the quenching chamber (1), and the water outlet of the water inlet (6) penetrates through the first partition plate (9).

3. The quench chamber for separating the ash and slag of the coal water slurry gasifier according to claim 1, wherein: The water inlet (6) is provided with four groups.

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