CN206905523U - New lead melting furnace - Google Patents
New lead melting furnace Download PDFInfo
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- CN206905523U CN206905523U CN201720873326.4U CN201720873326U CN206905523U CN 206905523 U CN206905523 U CN 206905523U CN 201720873326 U CN201720873326 U CN 201720873326U CN 206905523 U CN206905523 U CN 206905523U
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- cylinder
- slagging
- burner hearth
- melting furnace
- lead
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Abstract
The utility model discloses a kind of new lead melting furnace, including furnace tube, burner hearth is provided with the furnace tube, in addition to the slagging-off cylinder being arranged in burner hearth；Intercommunicating pore is additionally provided with the slagging-off cylinder bottom surface or side；Also include be arranged at slagging-off cylinder side or top surface on remove cinder hole；The intercommunicating pore and except cinder hole be used to connection slagging-off cylinder inner and outer；The apical position of the intercommunicating pore is less than the bottom position except cinder hole.The lead melting furnace is simple in construction, and produced scum silica frost is few during use, can effectively reduce material loss.
Description
Technical field
Storage battery production apparatus field is the utility model is related to, more particularly to a kind of new lead melting furnace.
Background technology
Lead accumulator is because it is compared to other novel storage batteries, such as lithium battery, so that its exclusive charge capacity is big, manufacturing cost
Low advantage, it is still existing with relatively broad battery, the battery such as applied on automobile.Lead accumulator is with filling out
The lead base grid of full spongy lead makees negative pole, and the lead base grid for filling up brown lead oxide makees positive pole, and makees electrolyte with dilute sulfuric acid.Electricity
In electric discharge, metallic lead is negative pole in pond, and oxidation reaction occurs, generates lead sulfate；Brown lead oxide is positive pole, and reduction reaction occurs,
Generate lead sulfate.For lead accumulator when with charged with direct current, the two poles of the earth generate elementary lead and brown lead oxide respectively.After removing power supply,
The state that it is returned to before electric discharge again, constitutional chemistry battery.Lead accumulator can repeatedly charge, discharge, and its monomer voltage is 2V,
Battery is the battery pack being made up of one or more monomers, most commonly 12V, other to also have 2V, 4V, 8V, 24V lead electric power storages
Pond.
In the production equipment of lead accumulator, lead melting furnace is one of important equipment, and it is in whole production procedure will
Solid Lead is molten into liquid lead, for preparing lead substrate etc..The structure for further optimizing existing lead melting furnace is more preferable to obtain
Equipment performance, it undoubtedly can further improve the manufacturing capacity of lead accumulator.
Utility model content
For the structure for further optimizing existing lead melting furnace set forth above to obtain more preferable equipment performance, can undoubtedly enter
One step improves the problem of manufacturing capacity of lead accumulator, and the utility model provides a kind of new lead melting furnace.The molten lead furnace structure
Simply, produced scum silica frost is few during use, can effectively reduce material loss.
New lead melting furnace provided by the utility model solves problem by following technical essential：New lead melting furnace, including
Furnace tube, burner hearth is provided with the furnace tube, in addition to the slagging-off cylinder being arranged in burner hearth；
Intercommunicating pore is additionally provided with the slagging-off cylinder bottom surface or side；
Also include be arranged at slagging-off cylinder side or top surface on remove cinder hole；
The intercommunicating pore and except cinder hole be used to connection slagging-off cylinder inner and outer；
The apical position of the intercommunicating pore is less than the bottom position except cinder hole.
In this programme, melting range of the burner hearth as lead material in this lead melting furnace.Due to inevitably being included in lead material
Oxide, lead material are easily aoxidized in thermal histories and at lead liquid liquid level position, and existing fire box temperature general control
It is low compared with lead liquid in the density of 500 DEG C or so, oxide, therefore in existing lead melting furnace, it can typically have been floated on burner hearth lead liquid liquid level and be in
Cotton-shaped oxide floating layer, while, it is necessary to remove divided by ensure lead melting furnace by floating layer after the degree that floating layer reaches certain
Normal work.Removed for floating layer scum silica frost, in the prior art, typically by way of manually or mechanically, pass through spoon etc.
Instrument, gradually remove the scum silica frost.However, when the instrument is contacted with scum silica frost or contacted with liquid level, the instrument is to scum silica frost
Wave can be evoked with the active force of liquid level, above wave is primarily present two harm：Cause to carry excessive lead liquid, increase in scum silica frost secretly
The probability that lead liquid contacts with oxygen, accelerates the generation of scum silica frost, both the above situation can cause to lead while scum silica frost is removed
The problem of causing lead liquid to be excessively lost.
In this programme, the intercommunicating pore being arranged on slagging-off cylinder is used for the lead liquid accommodation space for causing burner hearth and the interior of cylinder that remove the gred
Portion connect, with when liquid level covers intercommunicating pore so that lead liquid by entered in intercommunicating pore slagging-off cylinder inside；It is arranged at slagging-off cylinder
On except cinder hole as scum silica frost instrument to remove the gred cylinder inside stretch into hole.So, this lead melting furnace is when using so that lead liquid liquid level
It is maintained at the apical position of intercommunicating pore and except in the region between the bottom position of cinder hole, needs to remove on lead liquid in this lead melting furnace
Scum silica frost when, by except instrument is stretched into cinder hole with remove slagging-off cylinder in scum silica frost, now, slagging-off cylinder inside, equivalent to slagging-off
The side wall of cylinder provides a shroud for liquid level in slagging-off cylinder, and above shroud can hinder wave to be spread to the outside of slagging-off cylinder, reach
, so, can to the amount and the purpose of reduction lead liquid and oxygen contact surface area that lead liquid is immersed in scum silica frost in slag removal is reduced
Effectively reduce except the consumption of lead liquid in scum silica frost operation.
In this programme, when lead melting furnace because blowing cause liquid level be decreased below intercommunicating pore upper end, then because feed supplement and
Heating lead liquid gos up to above-mentioned removable scum silica frost operating mode, and the scum silica frost on the outside of slagging-off cylinder can enter by the intercommunicating pore
Enter the purpose for the inside of slagging-off cylinder, being finally reached and more thoroughly removing scum silica frost in burner hearth.Preferably, for ease of manufacturing and make
The scum silica frost outside cylinder that must remove the gred can have it is more enter in slagging-off cylinder, be arranged to the tubbiness knot that cylinder is upper end open that removes the gred
Structure, the upper end of the cylinder that removes the gred be used as it is described remove cinder hole, intercommunicating pore is positioned partially or entirely in the side wall for the cylinder that removes the gred, and the side of slagging-off cylinder
Multiple intercommunicating pores are provided with wall, the intercommunicating pore in slagging-off cylinder side wall is uniform in the side wall of slagging-off cylinder.
Further technical scheme is：
To avoid lead hypovolia in burner hearth from causing lead melting furnace to be destroyed because of heated, in addition to it is arranged at burner hearth
In liquid level gauge, the liquid valve that is communicated with burner hearth, in addition to the drive mechanism for driving liquid valve to act, the liquid level gauge with
Drive mechanism is connected, and liquid level gauge is used to control drive mechanism to act.Above liquid valve is the tapping valve of burner hearth, is preferably provided at
The bottom of burner hearth, in this programme, the side that drive mechanism provides control signal or direct linkage driving mechanism can be calculated as by liquid level
Formula, when liquid level is relatively low, drive mechanism driving liquid valve causes liquid valve to be closed.Such as using existing output numeral letter
Number liquid level gauge, receive that above-mentioned data signal is realized to the controlling of liquid valve, above-mentioned liquid level gauge uses ball float with upper drive mechanism
Formula liquid level gauge, directly by way of floating ball type liquid-level meter linkage driving mechanism etc..
As a kind of Redundancy Design, the quantity of the drive mechanism at least two.This programme is intended to overcome at liquid valve
Under opening, avoid causing lead liquid largely to be discharged because drive mechanism can not work and causing follow-up equipment to be damaged
Situation about even causing danger.Preferably, it is arranged to drive mechanism and uses different power sources, such as more than one drive mechanism
In, the power resources of each drive mechanism can be respectively derived from the forms such as pneumatic supply, hydraulic power source, electric energy, manual drive.So, may be used
In the case where partial power source fails, the driving of other power forms is used to drop to the probability that can not close liquid valve most
It is low.
It can be used for floating dust collection, environmental protection to reduce the scheme of thermal losses simultaneously as a kind of, in addition to be arranged at stove
Cover body above thorax, exhaust outlet is provided with the top of the cover body；
Also include the lid being fixed in cover body, the lid is between exhaust outlet and burner hearth, and lid outer wall and cover
There is the gap for being used for connecting exhaust outlet and burner hearth between the inwall of body.In this programme, the exhaust outlet is used to discharge in burner hearth
Flue gas etc., the lid is used to preventing flue gas connecting with exhaust outlet straight line, is only in one compared to cover body in the prior art
The scheme of cavity body, this programme may be such that the temperature in cover body increases by more than 10 DEG C.
As a kind of implementation for increasing lead liquid heating surface area, in addition to the flue by being passed through in burner hearth, and flue
Through slagging-off cylinder.In this programme, it may be such that the lead liquid energy in slagging-off cylinder is enough good and be heated.
As a kind of implementation for increasing lead liquid heating surface area, in addition to the flue by being passed through in burner hearth, the cigarette
Road is partially provided with bulb, and the bulb is located in burner hearth, and deflection plate is additionally provided with the bulb.This programme purport
Passing through simple flue scheme so that the hot fluid in flue, which can be flowed to sufficiently, participates in material on the wall of flue
Heating.
Due to the flue in use thermal stress it is larger, in the external compression suffered by the subsurface flue of lead liquid
Power is larger, cylindrical for the structural stability for enabling flue to keep good, the bulb.
As described above, stress is complicated in use for flue, therefore is preferably arranged to single bulb small volume, makees
Flue gas heat, while the implementation that whole flue structure stability is strong can be made full use of for one kind, due to the bulb
Quantity is multiple.
To reduce the heat loss in this lead melting furnace course of work, heat-insulation layer is also enclosed with the furnace tube.
To improve the structural stability of slagging-off cylinder, avoid because dead angle influences slagging-off efficiency, the slagging-off cylinder is opened for upper end
The cylinder-like structure of mouth.
Utility model has the advantages that：
In this programme, the intercommunicating pore being arranged on slagging-off cylinder is used for the lead liquid accommodation space for causing burner hearth and the interior of cylinder that remove the gred
Portion connect, with when liquid level covers intercommunicating pore so that lead liquid by entered in intercommunicating pore slagging-off cylinder inside；It is arranged at slagging-off cylinder
On except cinder hole as scum silica frost instrument to remove the gred cylinder inside stretch into hole.So, this lead melting furnace is when using so that lead liquid liquid level
It is maintained at the apical position of intercommunicating pore and except in the region between the bottom position of cinder hole, needs to remove on lead liquid in this lead melting furnace
Scum silica frost when, by except instrument is stretched into cinder hole with remove slagging-off cylinder in scum silica frost, now, slagging-off cylinder inside, equivalent to slagging-off
The side wall of cylinder provides a shroud for liquid level in slagging-off cylinder, and above shroud can hinder wave to be spread to the outside of slagging-off cylinder, reach
, so, can to the amount and the purpose of reduction lead liquid and oxygen contact surface area that lead liquid is immersed in scum silica frost in slag removal is reduced
Effectively reduce except the consumption of lead liquid in scum silica frost operation.
Brief description of the drawings
Fig. 1 is the structural representation of one specific embodiment of new lead melting furnace described in the utility model.
Numbering in figure is followed successively by：1st, furnace tube, 2, heat-insulation layer, 3, liquid valve, 4, drive mechanism, 5, intercommunicating pore, 6, flue,
7th, deflection plate, 8, temperature measuring equipment, 9, liquid level gauge, 10, cover body, 11, lid, 12, burner hearth, 13. slagging-off cylinders, 14, except cinder hole, 15,
Exhaust outlet, 16, bulb.
Embodiment
With reference to embodiment, the utility model is described in further detail, but structure of the present utility model is not only
It is limited to following examples.
Embodiment 1：
As shown in figure 1, new lead melting furnace, including furnace tube 1, burner hearth 12 is provided with the furnace tube 1, in addition to be arranged at stove
Slagging-off cylinder 13 in thorax 12；
Intercommunicating pore 5 is additionally provided with the slagging-off bottom surface of cylinder 13 or side；
Also include be arranged at slagging-off the side of cylinder 13 or top surface on remove cinder hole 14；
The intercommunicating pore 5 and except cinder hole 14 be used to connection slagging-off cylinder 13 inner and outer；
The apical position of the intercommunicating pore 5 is less than the bottom position except cinder hole 14.
In this programme, melting range of the burner hearth 12 as lead material in this lead melting furnace.Due to inevitably being wrapped in lead material
Oxycompound, lead material are easily aoxidized in thermal histories and at lead liquid liquid level position, and the temperature of existing burner hearth 12 is general
Control the density in 500 DEG C or so, oxide low compared with lead liquid, therefore in existing lead melting furnace, it can typically be floated on the lead liquid liquid level of burner hearth 12
It is floating to have in cotton-shaped oxide floating layer, while, it is necessary to go divided by ensure floating layer after the degree that floating layer reaches certain
The normal work of lead melting furnace.Remove for floating layer scum silica frost, in the prior art, typically by way of manually or mechanically, pass through
The instruments such as spoon, gradually remove the scum silica frost.However, when the instrument is contacted with scum silica frost or contacted with liquid level, the instrument
Wave can be evoked to the active force of scum silica frost and liquid level, above wave is primarily present two harm：Cause to carry excessive lead in scum silica frost secretly
Liquid, the probability that lead liquid contacts with oxygen is added, accelerate the generation of scum silica frost, both the above situation can cause removing scum silica frost
Also result in the problem of lead liquid is excessively lost.
In this programme, the intercommunicating pore 5 being arranged on slagging-off cylinder 13 is used for lead liquid accommodation space and the slagging-off for causing burner hearth 12
Cylinder 13 inside connection, with when liquid level covers intercommunicating pore 5 so that lead liquid by entered in intercommunicating pore 5 slagging-off cylinder 13 inside；
The cinder hole 14 that removes being arranged on slagging-off cylinder 13 stretches into hole as scum silica frost instrument to inside slagging-off cylinder 13.So, this lead melting furnace exists
With when so that lead liquid liquid level is maintained at the apical position of intercommunicating pore 5 and except in the region between the bottom position of cinder hole 14,
This lead melting furnace need remove lead liquid on scum silica frost when, by except stretch into instrument in cinder hole 14 with remove slagging-off cylinder 13 in scum silica frost, this
When, inside slagging-off cylinder 13, the side wall equivalent to slagging-off cylinder 13 provides a shroud, above shroud for liquid level in slagging-off cylinder 13
Wave can be hindered to be spread to the outside of slagging-off cylinder 13, reach the amount and reduce lead for reducing that lead liquid is immersed in scum silica frost in slag removal
The purpose of liquid and oxygen contact surface area, so, the consumption of lead liquid in being operated except scum silica frost can be effectively reduced.
In this programme, when lead melting furnace because blowing cause liquid level be decreased below the upper end of intercommunicating pore 5, then because feed supplement and
Heating lead liquid gos up to above-mentioned removable scum silica frost operating mode, and the scum silica frost in the outside of slagging-off cylinder 13 can pass through the intercommunicating pore
5 enter the inside of slagging-off cylinder 13, are finally reached the purpose for more thoroughly removing scum silica frost in burner hearth 12.Preferably, for ease of
Manufacture and enable the scum silica frost outside slagging-off cylinder 13 to there is more entering to remove the gred in cylinder 13, it is upper end to be arranged to slagging-off cylinder 13
The barrel-like structure of opening, the upper end of slagging-off cylinder 13 be used as it is described remove cinder hole 14, intercommunicating pore 5 is positioned partially or entirely in the cylinder 13 that removes the gred
In side wall, and multiple intercommunicating pores 5 are provided with the side wall for the cylinder 13 that removes the gred, the intercommunicating pore 5 in the slagging-off side wall of cylinder 13 is removing the gred
It is uniform in the side wall of cylinder 13.
Embodiment 2：
As shown in figure 1, the present embodiment is further qualified on the basis of embodiment 1：To avoid lead liquid measure in burner hearth 12
It is very few and cause lead melting furnace and destroyed because of heated, in addition to be arranged in burner hearth 12 liquid level gauge 9, communicate with burner hearth 12
Liquid valve 3, in addition to the drive mechanism 4 for driving liquid valve 3 to act, the liquid level gauge 9 is connected with drive mechanism 4, liquid
Position meter 9 is used to control drive mechanism 4 to act.Above liquid valve 3 is the tapping valve of burner hearth 12, is preferably provided at the bottom of burner hearth 12
Portion, in this programme, can be by way of drive mechanism 4 provides control signal or direct linkage driving mechanism 4 liquid level gauge 9,
When liquid level is relatively low, drive mechanism 4 drives liquid valve 3 that liquid valve 3 is closed.Such as use existing output digit signals
Liquid level gauge 9, above-mentioned data signal is received with upper drive mechanism 4 and realized to the controlling of liquid valve 3, above-mentioned liquid level gauge 9 using floating
Ball liquid level gauge 9, directly by way of the linkage driving mechanism 4 of floating ball type liquid-level meter 9 etc..
As a kind of Redundancy Design, the quantity of the drive mechanism 4 at least two.This programme is intended to overcome liquid valve 3
Under opening, avoid because drive mechanism 4 can not work and cause lead liquid largely discharge and cause follow-up equipment by
The situation that damage is even caused danger.Preferably, it is arranged to drive mechanism 4 and uses different power sources, as more than one drives
In mechanism 4, the power resources of each drive mechanism 4 can be respectively derived from the forms such as pneumatic supply, hydraulic power source, electric energy, manual drive.This
Sample, the driving of other power forms can be used so that the probability that can not close liquid valve 3 to be dropped in the case where partial power source fails
To minimum.
It can be used for floating dust collection, environmental protection to reduce the scheme of thermal losses simultaneously as a kind of, in addition to be arranged at stove
The cover body 10 of the top of thorax 12, the top of the cover body 10 is provided with exhaust outlet 15；
Also include the lid 11 being fixed in cover body 10, the lid 11 covers between exhaust outlet 15 and burner hearth 12
There is the gap for being used for connecting exhaust outlet 15 and burner hearth 12 between the outer wall of body 11 and the inwall of cover body 10.In this programme, the row
Gas port 15 is used to discharge flue gas in burner hearth 12 etc., and the lid 11 connects for preventing flue gas with the straight line of exhaust outlet 15, compares
In cover body 10 in the prior art be only the scheme of a hollow cavity, this programme may be such that temperature in cover body 10 increase by 10 DEG C with
On.
As a kind of implementation for increasing lead liquid heating surface area, in addition to the flue 6 by being passed through in burner hearth 12, and cigarette
Road 6 passes through slagging-off cylinder 13.In this programme, it may be such that the lead liquid energy in slagging-off cylinder 13 is enough good and be heated.
As a kind of implementation for increasing lead liquid heating surface area, in addition to the flue 6 by being passed through in burner hearth 12, it is described
Flue 6 is partially provided with bulb 16, and the bulb 16 is located in burner hearth 12, and baffling is additionally provided with the bulb 16
Plate 7.This programme is intended to by the simple scheme of flue 6 so that the hot fluid in flue 6 can sufficiently flow to flue 6
The heating of material is participated on wall.
Due to the flue 6, thermal stress is larger in use, is squeezed in the outside suffered by the subsurface flue 6 of lead liquid
Pressure is larger, cylindrical for the structural stability for enabling flue 6 to keep good, the bulb 16.
As described above, stress is complicated in use for flue 6, thus be preferably arranged to the single volume of bulb 16 compared with
It is small, flue gas heat, while the implementation that the whole structural stability of flue 6 is strong can be made full use of as one kind, due to described swollen
The quantity in big portion 16 is multiple.
Embodiment 3：
The present embodiment is carried out further on the basis of any one technical scheme that any of the above one embodiment provides
Limit, as shown in figure 1, to reduce the heat loss in this lead melting furnace course of work, heat-insulation layer 2 is also enclosed with the furnace tube 1.
To improve the structural stability of slagging-off cylinder 13, avoid because dead angle influences slagging-off efficiency, the slagging-off cylinder 13 is upper
The cylinder-like structure of end opening.
For ease of temperature in detection burner hearth 12, in addition to the temperature measuring equipment 8 being arranged in burner hearth 12.It is preferably arranged to thermometric
Device 8 has multiple temperature measuring points on the depth direction of burner hearth 12, to reflect the particular state of lead liquid in lead melting furnace on the whole.
Above content is to combine the further description that specific preferred embodiment is made to the utility model, it is impossible to is recognized
Determine specific embodiment of the present utility model and be confined to these explanations.For the common skill of the utility model art
For art personnel, the other embodiment that is drawn in the case where not departing from the technical solution of the utility model should be included in this practicality
In new protection domain.
Claims (10)
1. new lead melting furnace, including furnace tube (1), burner hearth (12) is provided with the furnace tube (1), it is characterised in that also include setting
The slagging-off cylinder (13) being placed in burner hearth (12)；
Intercommunicating pore (5) is additionally provided with slagging-off cylinder (13) bottom surface or side；
Also include be arranged at slagging-off cylinder (13) side or top surface on remove cinder hole (14)；
The intercommunicating pore (5) and except cinder hole (14) be used to connection slagging-off cylinder (13) inner and outer；
The apical position of the intercommunicating pore (5) is less than the bottom position except cinder hole (14).
2. new lead melting furnace according to claim 1, it is characterised in that also include the liquid level gauge being arranged in burner hearth (12)
(9), the liquid valve (3) communicated with burner hearth (12), in addition to the drive mechanism (4) for driving liquid valve (3) to act, the liquid
Position meter (9) is connected with drive mechanism (4), and liquid level gauge (9) is used to control drive mechanism (4) to act.
3. new lead melting furnace according to claim 2, it is characterised in that the quantity at least two of the drive mechanism (4)
It is individual.
4. new lead melting furnace according to claim 1, it is characterised in that also include being arranged at the cover body above burner hearth (12)
(10), it is provided with exhaust outlet (15) at the top of the cover body (10)；
Also include the lid (11) that is fixed in cover body (10), the lid (11) be located at exhaust outlet (15) and burner hearth (12) it
Between, and there is the gap for being used for connecting exhaust outlet (15) and burner hearth (12) between lid (11) outer wall and the inwall of cover body (10).
5. new lead melting furnace according to claim 1, it is characterised in that also include the flue by being passed through in burner hearth (12)
(6), and flue (6) passes through slagging-off cylinder (13).
6. new lead melting furnace according to claim 1, it is characterised in that also include the flue by being passed through in burner hearth (12)
(6), the flue (6) is partially provided with bulb (16), and the bulb (16) is located in burner hearth (12), the bulb
(16) deflection plate (7) is additionally provided with.
7. new lead melting furnace according to claim 6, it is characterised in that the bulb (16) is cylindrical.
8. new lead melting furnace according to claim 6, it is characterised in that the quantity of the bulb (16) is multiple.
9. new lead melting furnace as claimed in any of claims 1 to 8, it is characterised in that also wrapped on the furnace tube (1)
It is wrapped with heat-insulation layer (2).
10. new lead melting furnace as claimed in any of claims 1 to 8, it is characterised in that it is described slagging-off cylinder (13) be
The cylinder-like structure of upper end open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720873326.4U CN206905523U (en) | 2017-07-18 | 2017-07-18 | New lead melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720873326.4U CN206905523U (en) | 2017-07-18 | 2017-07-18 | New lead melting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206905523U true CN206905523U (en) | 2018-01-19 |
Family
ID=61311990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720873326.4U Expired - Fee Related CN206905523U (en) | 2017-07-18 | 2017-07-18 | New lead melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206905523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144128A (en) * | 2017-07-18 | 2017-09-08 | 大英德创精工设备有限公司 | New lead melting furnace |
-
2017
- 2017-07-18 CN CN201720873326.4U patent/CN206905523U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144128A (en) * | 2017-07-18 | 2017-09-08 | 大英德创精工设备有限公司 | New lead melting furnace |
| CN107144128B (en) * | 2017-07-18 | 2023-12-12 | 江西恒力电池科技有限公司 | Novel lead melting furnace |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20190718 |