CN209372785U - A kind of sulfur content detecting instrument of coke - Google Patents

Abstract

The utility model relates to a kind of sulfur content detecting instruments of coke, belong to dry coke quenching detection technique field, including shell, air cleaning unit, combustion furnace, electrolytic cell and control device are installed in the shell, the combustion furnace includes furnace body, combustion tube is installed in furnace body, heating coil is provided on the outer wall of combustion tube, emergency casing is arranged with outside the combustion tube, the tail end of combustion tube is connected with downtake pipe, the tail end of emergency casing is connected with second exhaust pipe, and second exhaust pipe connect with downtake pipe and is provided with one-way overflow valve on second exhaust pipe.The utility model is scrapped with detection work caused by avoidable sample combustion tube fracture or crackle, it is ensured that sulfur content detects effective, accurate the advantages of carrying out.

Description

A kind of sulfur content detecting instrument of coke

Technical field

The utility model relates to a kind of sulfur content detecting instruments of coke, belong to dry coke quenching detection technique field, especially suitable The sulfur content detection of coke is generated for dry coke quenching.

Background technique

Dry coke quenching (coke dry quenching) extinguishes coke with dry method, is directly sprayed with water What wet process distinguished, general principles are to carry out reverse heat-exchange using low temperature nitrogen and red heat coke in relatively closed system, The nitrogen for absorbing heat exchanges heat with the steam in boiler again, the low temperature nitrogen to be exchanged heat reciprocation cycle again under the driving of power source It uses.

Coke quality can be improved using dry coke quenching, main reason is that, the red burnt temperature that coke oven is produced is very high, and up to one Thousand degrees Celsius, charcoal is cooled down using coke wet quenching, coke temperature drastically reduces, and will seriously affect coke internal structure, so that coke Strength reduction, density reduce, coke quality be deteriorated；And dry coke quenching method is, red burnt and cooling nitrogen progress heat cooling with nitrogen Exchange reduces coke temperature, and this method can be such that coke comes into full contact with nitrogen, slow cooling, improves coke drum strength, increases Big Coke density improves the stability of ironmaking coke, so that coke lumpiness size is almost the same, the cooling coke of this method is conducive to height Furnace ironmaking, and during dry coke quenching, it is red burnt from the loading of coke dry quenching furnace top, need to prestore section heat preservation before cooling by coke dry quenching furnace for the moment Between, coke full maturity is so aloowed, is existed without green coke, and then improve its quality.

Although its cold Jiao Zhiliang can be improved by dry coke quenching, it is used for blast furnace ironmaking, STRENGTH ON COKE is still needed to before blast furnace ironmaking In sulfur content be measured, be discharged into atmosphere and pollute the environment in ironmaking to avoid excessive sulfide.It is common Coke sulphur content determination use coulometric titration, that is, need use using coulometric titration as the automatic sulphur meter of principle, Referred to as constant sulphur appliance.

Constant sulphur appliance substantially carries out, coke specimen to be detected first exists according to the following steps when detecting the sulfur content of coke The combustion synthesis in air of purified mistake in combustion furnace, so that the equal combustion decomposition of sulphur in coke is SO2 and a small amount of SO3 gas；Later Burnt gas is brought in electrolytic cell, and the sulfide for generation of burning reacts in electrolytic cell, which can destroy electricity The equilibrium state of liquid is solved, the electrolysis electrode electrolysis of control device starting at this time repeats this so that electrolyte comes back to equilibrium state Process, until off-test；Finally, instrument calculates the total sulphur content in sample according to the electricity that electrolysis consumes.

Currently, will appear the serious relatively low problem of testing result in sulfur content detection, found after analyzing, mainly by Caused by the sulfurous gas that sample combustion tube in combustion furnace is cracked or breakage problem causes leaks, further, since examination Sample combustion tube is placed in burner block, and when detecting under the high temperature, even if occurring being broken or crackle is also difficult to find in time, only Have detection data occur it is abnormal after can just unclamp the fastening screw of fire door, draw it out inspection, thus can make the inspection of early period Survey work scrap, and discovery fracture sample combustion tube after, replacement be also more troublesome, therefore, how the burning to constant sulphur appliance Furnace improves, so that the sulfur content detection of coke can effectively, accurately carry out the problem of becoming urgent need to resolve.

Summary of the invention

To solve the above technical deficiency, the utility model provides a kind of sulfur content detecting instrument of coke, can keep away Be excused from an examination sample combustion tube fracture or crackle caused by detection work scrap, it is ensured that sulfur content detection effectively, accurately carry out.

The technical solution of the utility model is as follows: a kind of sulfur content detecting instrument of coke, including shell, in the shell Air cleaning unit, combustion furnace, electrolytic cell and control device are installed, the combustion furnace includes furnace body, and combustion is equipped in furnace body Pipe is burnt, heating coil is provided on the outer wall of combustion tube, emergency casing, the tail end connection of combustion tube are arranged with outside the combustion tube There is downtake pipe, the tail end for casing of meeting an urgent need is connected with second exhaust pipe, and second exhaust pipe is connect and second with downtake pipe One-way overflow valve is provided on exhaust pipe.

The technical solution of the utility model further include: the rear end that the tail portion of the emergency casing passes through rear connection cover and furnace body The front end of connection, combustion tube is connected by the front end of preceding connection cover and furnace body.

The technical solution of the utility model further include: connection cover and furnace body are clamped after described, and rear connection cover is connect with furnace body Position is provided with sealing element, and rear connection cover is provided with the through-hole of accommodate electrod piece, and the electrode slice is connect with heating coil.

The technical solution of the utility model further include: the preceding connection cover and furnace body are clamped, and preceding connection cover is connect with furnace body Position is provided with sealing element, and installation groove is provided on the inside of preceding connection cover, and the front end of combustion tube is provided with matches with installation groove The installation base of conjunction.

The technical solution of the utility model further include: the inboard wall of furnace body is connected with sunpender, and the end of sunpender is connected with branch Fagging, the support plate are located at the outside of emergency casing, are provided with heat-preservation cotton in support plate.

The beneficial effects of the utility model are: by being arranged an emergency casing on the outside of the combustion tube in combustion furnace, and divide Exhaust pipe is not set in the tail end of combustion tube and emergency casing, once caused by thus combustion tube is cracked or fracture outside gas It lets out, then leaked gas can only enter the emergency casing of outer layer, will not be to burner block internal leakage, therefore can be covered by emergency Pipe carries out centralized collection and is discharged by the second exhaust pipe of its tail end, meanwhile, Unidirectional relief is provided on second exhaust pipe Valve then can be more than the setting value of one-way overflow valve, it is dynamic thus to execute opening once there is combustion gas leakage into emergency casing Make, leaked gas is also collected to the detection that the unified guidance of downtake pipe carries out next step into electrolytic cell, and when burning When the normal detection flawless of pipe or fracture, it can ensure that the gas of combustion tube discharge will not be by the under the blocking of one-way overflow valve Two exhaust pipes enter in emergency casing, and reaction inspection is carried out into electrolytic cell to ensure that all gas of sample burning is guided with this Survey, to can ensure that the accuracy of testing result, and also will not because of combustion tube crackle and cause the report of detection work early period It is useless.

Detailed description of the invention

Fig. 1 is the outline structural diagram of the utility model.

Fig. 2 is the schematic diagram of internal structure of the utility model.

Fig. 3 is the structural schematic diagram of the utility model combustion furnace.

1, shell, 2, electrolytic cell window, 3, air purifying windows, 4, power switch, 5, flowmeter, 6, sample presentation mouth, 7, electrolytic cell, 8, air cleaning unit, 9, control device, 10, sample presentation motor, 11, combustion furnace, 12, furnace body, 13, sunpender, 14, heat-preservation cotton, 15, Sealing element, 16, preceding connection cover, 17, sample feeding pipe, 18, installation base, 19, heating coil, 20, combustion tube, 21, emergency casing, 22, downtake pipe, 23, second exhaust pipe, 24, one-way overflow valve, 25, rear connection cover, 26, electrode slice.

Specific embodiment

Below in conjunction with attached drawing, by embodiment, the utility model is described in further detail.

As shown in Figure 1 to Figure 3, the sulfur content detecting instrument of the coke of the utility model is primarily used to solve combustion tube Detection work caused by crackle is scrapped, including shell 1 is provided on the external styling of shell 1 and is located at as depicted in figs. 1 and 2 The electrolytic cell window 2 and air purifying windows 3 of front end, to be used to observe the electrolytic cell 7 and air cleaning unit 8 that are placed in inside shell 1 Working condition.The right side of shell 1 is provided with power switch 4, flowmeter 5 and sample presentation mouth 6, in sample presentation mouth 6 and shell 1 11 position of combustion furnace is corresponding, and sample to be detected is sent into combustion furnace 11 under the drive of sample presentation motor 10 and is burnt, in addition, It is also equipped with control device 9, in shell 1 each detecting step and result are controlled and be analyzed.

As shown in figure 3, combustion tube 20 is installed in the furnace body 12 of combustion furnace 11, sample to be detected and purified sky Gas burns herein forms the gas that detection needs, such as SO2 and SO3, to ensure that combustion tube 20 can provide the temperature that burning needs, Heating coil 19 is provided on the outer wall of combustion tube 20, which connects to power supply fever by electrode slice 26.And it is The heat loss for avoiding heating coil 19 from generating, is equipped with heat-preservation cotton 14 in the cavity of furnace body 12, specifically, the heat-preservation cotton 14 are supported by the sunpender 13 that connect with 12 inner wall of furnace body and support plate.

In the utility model, in order to avoid testing result caused by 20 crackle of combustion tube or fracture is relatively low, detection work report It is useless, it is equipped with emergency casing 21 in the outer sheath of combustion tube 20, and the tail end of combustion tube 20 is provided with downtake pipe 22 respectively, The tail end of emergency casing 21 is provided with second exhaust pipe 23, and second exhaust pipe 23 is connect with downtake pipe 22, and One-way overflow valve 24 is provided on second exhaust pipe 23.As a result, when crackle or fracture occur for combustion tube 20, the gas of sample burning Cognition enters in emergency casing 21, since the entrance of gas is so that be more than the cracking pressure of one-way overflow valve 24, lets out The gas for draining to emergency casing 21 can be collected in downtake pipe 22 by second exhaust pipe 23, uniformly be sent into electrolytic cell 7 Reaction detection.And one-way overflow valve 24 ensures that second exhaust pipe 23 will not be passed the gas through when 20 normal No leakage of combustion tube to fall It flow in emergency casing 21.

In the utility model, in order to facilitate the replacement maintenance of combustion tube 20 and emergency casing 21, by the tail of casing 21 of meeting an urgent need Portion is connect by rear connection cover 25 with the rear end of furnace body 12, the front end that the front end of combustion tube 20 passes through preceding connection cover 16 and furnace body 12 Connection.

Specifically, rear connection cover 25 is clamped with furnace body 12, and is provided with 12 link position of furnace body in rear 25 lid of connection close Sealing 15, reliable to ensure to install, similar, preceding connection cover 16 is also clamped with furnace body 12, and is provided in the two link position Sealing element 15.It is provided in rear connection cover 25 so that the through-hole that electrode slice 26 passes through, to be heating coil 19 for electric heating.? The inside of preceding connection cover 16 is provided with installation groove, and the front end of combustion tube 20 is provided with the installation base with installation groove cooperation 18, to facilitate the installation of combustion tube 20 to position and fix, sample feeding pipe 17 and air inlet pipe are additionally provided in preceding connection cover 16 (in figure It is not shown), to facilitate the progress of detection work.

The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model System, done any modifications, equivalent replacements, and improvements etc., should be included in this reality within the spirit and principle of the utility model Within novel protection scope.

Claims (5)

1. a kind of sulfur content detecting instrument of coke, including shell (1), the shell (1) is interior to be equipped with air cleaning unit (8), combustion furnace (11), electrolytic cell (7) and control device (9), it is characterised in that: the combustion furnace (11) includes furnace body (12), It is equipped with combustion tube (20) in furnace body (12), heating coil (19), the combustion tube is provided on the outer wall of combustion tube (20) (20) emergency casing (21) is arranged with outside, the tail end of combustion tube (20) is connected with downtake pipe (22), emergency casing (21) Tail end is connected with second exhaust pipe (23), and second exhaust pipe (23) connect with downtake pipe (22) and on second exhaust pipe (23) It is provided with one-way overflow valve (24).

2. a kind of sulfur content detecting instrument of coke as described in claim 1, it is characterised in that: emergency casing (21) Tail portion is connect by rear connection cover (25) with the rear end of furnace body (12), and the front end of combustion tube (20) passes through preceding connection cover (16) and furnace The front end of body (12) connects.

3. a kind of sulfur content detecting instrument of coke as claimed in claim 2, it is characterised in that: after described connection cover (25) with Furnace body (12) clamping, rear connection cover (25) and furnace body (12) link position are provided with sealing element (15), rear connection cover (25) setting There is the through-hole of accommodate electrod piece (26), the electrode slice (26) connect with heating coil (19).

4. a kind of sulfur content detecting instrument of coke as claimed in claim 2 or claim 3, it is characterised in that: the preceding connection cover (16) it is clamped with furnace body (12), preceding connection cover (16) and furnace body (12) link position are provided with sealing element (15), preceding connection cover (16) installation groove is provided on the inside of, the front end of combustion tube (20) is provided with the installation base (18) with installation groove cooperation.

5. a kind of sulfur content detecting instrument of coke as described in claim 1, it is characterised in that: furnace body (12) inner wall connects It is connected to sunpender (13), the end of sunpender (13) is connected with support plate, and the support plate is located at the outside of emergency casing (21), support Heat-preservation cotton (14) are provided on plate.